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JVC KW-AVX840

7" In-Dash Double DIN Multimedia DVD/Divx/MP3/WMA/WAV Receiver with Built-in Bluetooth (El Kameleon)

Discontinued
|

We apologize

This item has been discontinued

Flexible Entertainment

The JVC KW-AVX840 is the perfect option when it comes to in-dash double din A/V entertainment receivers. Now itís not just a CD/DVD Player, it can also playback DVD-VR, MPEG1, MPEG2 and JPEG Pictures. By being compatible with so many different types of media, it gives you the ability to play just about anything. This unit comes with the proximity sensor. This sensor will allow you to hide the on-screen menu when your hand is away from the screen and then reveal the menu when your hand approaches it. This is helpful when you donít want a bright screen in your car while driving at night.

The unit comes with built-in Bluetooth making your life easy without having to fumble around with a cell phone while driving. Integrated Bluetooth allows you to pair phones, headsets and other portable devices for audio streaming and hands-free calling. Not only does it have built-in bluetooth, it does allow you to play your iPod via the USB Input. All you need is the standard USB-to-iPod cable and you are set for iPod audio playback.

JVC GPS Drive Motion X

Find Your Route with GPS Drive Motion X

If you have an iPhone, you are on your way to a full featured in-dash navigation system for a fraction of the cost. After downloading the MotionX-GPS Drive application from the App Store, you can turn the JVC KW-AVX640 into a first rate navigation system. Simply install the app and connect your iPhone to the KW-AVX640. The points of interest are loaded from the internet to provide up to date and accurate information. Take full advantage of your iPhone and use MotionX GPS Drive as your navigation solution

 
 
 
 
 
 
 

General Features:

  • In-Dash 7" Double DIN AM/FM, DVD, MP3, WMA, WAV Multimedia Receiver
  • Built-in Bluetooth technology supports hands-free calling with a compatible Bluetooth phone
  • 2-Way control for iPod and iPhone allows user to control the device from the headunit or from the device
  • Motorized faceplate with tilt
  • Remote control optional: JVC RM-RK252P required and sold separately
  • Slide-down detachable face
  • 7" TFT-LCD Full-color touchscreen display
  • Personalized wallpaper backgrounds lets you choose between 4 different wallpaper themes
  • Separate variable color control for wallpapers, text, and hard-key buttons
  • Switchable 4:3 or 16:9 aspect ratio
  • CEA-2006 compliant amplifier
  • Power Output:
    • Peak: 50 watts x 4 channels
    • RMS: 20 watts x 4 channels
  • CD Text Display
  • MP3 ID3 Tag Display (Title/Artist/Album)
  • Proximity sensor hides the on screen menu when your hand is away from the unit and reveals the menu when your hand approaches the unit
  • El Kameleon design keeps unit concealed
  • Blackout feature turns off key illumination
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Playback and Audio Features:

  • Playback of DVD, DVD-VR, MPEG1, MPEG2, DivX, VCD, CD, CD-R, CD-RW, CD-DA, MP3, WMA, WAV, and JPEG
  • Compatible with region 1 DVDs
  • AM/FM tuner with 18FM/6AM presets
  • 3-Band parametric EQ with 7 selectable tone curves (6 Preset, 1 User)
  • High-Pass Filter (40, 60, 80, 100, 120, 150, 180, 220, Hz or Through)
  • Low-Pass Filter (50, 60, 80, 100, 120 Hz)
  • Radio data system (RDS) displays radio broadcast information such as artist, title and album
  • Dolby Digital Audio technology
  • PAL/NTSC Compatible
  • Adjustable subwoofer output level
  • 24-bit digital-to-analog converter
  • Dual zone capable

Expandability Options:

  • 3 Sets of 4V preamp outputs (front, rear and mono-subwoofer)
  • Integrated Bluetooth: Enables phones, headsets, and portable devices to be paired for audio streaming and hands free calling with included voice microphone
  • SIRIUS or XM Satellite Radio Ready: SIRIUS Satellite Radio Package or XM Radio Package required and sold separately, as well as a subscription to the respective satellite radio service
  • HD Radio Ready: JVC KT-HD300 required and sold separately
  • iPod/iPhone Ready:
    • Audio playback Only: Scosche IPUSB2 cable will work with most iPods/iPhones
    • Audio & Video Playback: JVC KS-U30 required and sold separately
  • Steering wheel remote ready: PAC SWI-JACKv1 or the Axxess ASWC required and is sold separately
  • 1 Rear RCA composite video output
  • 1 Rear RCA composite audio/video input
  • Dedicated video input for rear view camera
  • MotionX GPS Application Ready - iPhone users with MotionX GPS Navigation Application can stream navigation image from application directly onto screen

Bluetooth Features:

  • Built-in Bluetooth technology for hands-free talking and audio streaming
  • Supports SMS message notifications and A2DP audio streaming
  • Bluetooth profiles supported:
    • HFP: Hands Free Profile allows a hands-free car kit to connect to a compatible mobile phone
    • A2DP: Advanced Audio Distribution Profile allows high quality audio to be streamed from an audio device to the car stereo
    • AVRCP: Audio/Video Remote Control Profile supports basic remote control functions (play, pause, etc) via Bluetooth
    • OPP: Object Push Profile for sending basic "objects" such as pictures and other virtual material
    • PBAP: Phone Book Access Profile allows the car stereo to display the name of the incoming caller, as well as access the contact list of the mobile phone directly from the car stereo
  • Works with most Bluetooth enabled cell phones
  • Supports hands free calling with audio streaming
  • Enables the receipt notification of SMS (Short Message Service)
  • Voice recognition dialing with compatible cell phones
  • Manual phonebook transfer up to a maximum of 400
  • Microphone (with mounting bracket) included

Key Features And Comparison Chart

Display
6.1" LCD Touchscreen
6.1" LCD Touchscreen
7" LCD Touchscreen
6.1" LCD Touchscreen
6.1" LCD Touchscreen
6.1" LCD Touchscreen
5.4" LCD Monitor
Navigation
Motion X
Motion X
Motion X
Motion X
 
Variable Color Illumination
Pre-amp Outputs
3 Pairs
(2.5 Volts)
3 Pairs
(2.5 Volts)
3 Pairs
(4 Volts)
3 Pairs
(4 Volts)
3 Pairs
(4 Volts)
3 Pairs
(4 Volts)
3 Pairs
(5 Volts)
Video Playback
DVD
DVD
DVD, VCD, DivX
DVD, VCD, DivX
DVD, VCD, DivX
DVD, VCD, DivX
DVD, VCD
Audio Playback
CD, MP3, WMA
CD, MP3, WMA
CD, MP3, WMA
CD, MP3, WMA
CD, MP3, WMA
CD, MP3, WMA
CD, MP3, WMA
Bluetooth
Built-In
Built-In
Built-In
Built-In
Built-In
KS-BTA100
Required
Built-In
USB Interface
FRONT
FRONT
REAR
REAR
REAR
REAR
REAR
Auxiliary Input (Mini-Jack)
FRONT
FRONT
 
FRONT
FRONT
FRONT
 
HD Radio
Built-In
Built-In
KT-HD300
Required
KT-HD300
Required
KT-HD300
Required
KT-HD300
Required
KT-HD300
Required
Satellite Radio Ready
2-Way iPod Control
Equalizer
7-Band iEQ
7-Band iEQ
3-Band iEQ
3-Band iEQ
3-Band iEQ
3-Band iEQ
7-Band iEQ
Digital-to-Analog Converter
192kHz/24bit
192kHz/24bit
192kHz/24bit
192kHz/24bit
192kHz/24bit
192kHz/24bit
192kHz/24bit
Dolby Digital Sound
2-Channel
2-Channel
2-Channel
 
 
 
5.1-Channel
AM/FM Presets
18FM / 6AM
18FM / 6AM
18FM / 6AM
18FM / 6AM
18FM / 6AM
18FM / 6AM
18FM / 6AM
Dual Zone
 
 
 
 
 
 
iTunes Tagging
 
 
 
 
 

Product History:

JVC KW-AVX840 thumbnail
(newest, current model)
JVC KW-AVX830 thumbnail
(previous model, replaced by JVC KW-AVX840)
JVC KW-AVX820 thumbnail
(previous model, replaced by JVC KW-AVX830)
JVC KW-AVX810 thumbnail
(previous model, replaced by JVC KW-AVX820)
JVC KW-AVX800 thumbnail
(previous model, replaced by JVC KW-AVX810)
JVC KW-AVX706 thumbnail
(previous model, replaced by JVC KW-AVX800)

In-Dash Receiver Specifications

Receiver Size

Single DIN: 1 DIN dimensions will work with all single DIN installation kits we have to offer. Single DIN radios are the most common size for after-market stereos.

Single DIN slot with flip-out screen: The DIN stereo includes a retractable, flip-out screen. Before purchasing, make measurements to be sure there is no interference with dash accessories such as A/C vents or shift levers.

Single DIN slot with a larger face: Standard single DIN size, but the display is larger then the standard single DIN size. Due to the nature of the larger face, problems may arise when installing in particular vehicles. These stereos are great for single DIN slots where you want a larger screen.

1.5 DIN: This size is very uncommon in vehicles, however this size opening is most commonly found in Chrysler and Chevrolet vehicles.

Double DIN: Approximately 4-inches in height, this size is becoming more common every year. Prior to 2000, this size was typically only found in Japanese vehicles such as those made by Honda or Toyota. Now, it is becoming more popular for many vehicles to be fit with a Double DIN opening.

Double DIN
Faceplate Security

Detachable / Removable faceplate security: The most common anti-theft feature. It allows you to take the faceplate with you, thus disallowing operation, which deters theft.

Security Codes: Mainly a feature in high end video units which do not have a detachable face / screen. Once the unit is uninstalled (or stolen), a security code (or PIN) is required upon reinstallation. Though you no longer have your unit after the theft, the thief also does not have your security code, which makes the unit useless. The hope is the thief knows which units have security codes and he/she chooses not to steal your unit because of the security code.

Ghost technology: This is not commonly used, but can be found primarily in a select number of 2004-2005 head units. It creates an illusion that no unit is installed by appearing completely black when turned off. Potential thieves may steer clear because it appears as though no head unit is installed.

Anti-theft covers: Similar to ghost and hiding faces because they only create an illusion that the face/unit is not in place.

ESN: Stands for Electronic Serial Number. Allows the disabling of the radio and allows tracking if it is stolen.

Detachable
Motorized Faceplate
Some in-dash car stereos feature a motorized faceplate that moves to expose a CD or DVD slot. This is a convenient feature that allows the front display to be larger and easier to read. The positioning of the monitor gives you control over the angle you would like to view information on the stereo.
Yes
Remote Control
Allows control of specific features and functions from a remote control. Typically they are used to prevent button wear on your radio, or to allow easier navigation of menus.
Optional (Accessory required and sold separately)
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison.

50 watts x 4 channels
RMS Power Output
The amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS rating, the louder and cleaner your music sounds. The RMS output figure is much more accurate than the peak rating when comparing products.
20 watts x 4 channels
Preamp RCA Outputs
RCA outputs, commonly known as preamp outputs, allow you to connect one or sometimes multiple external amplifiers. An in-dash receiver will commonly have one, two or three sets of RCA outputs that can be used to connect external amplifiers and other components. One pair of RCA outputs will typically provide a full range signal that can be used for most subwoofer or speaker amplifiers. Two pairs of RCA outputs can typically be configured as four full range signals, or also as two full range and two subwoofer signals. Three sets of RCA outputs will almost always produce four speaker signals and two subwoofer signals for use with multiple amplifiers.
3 Pairs (Front, Rear, and Subwoofer)
Dedicated Subwoofer Preamp RCA Output
A dedicated output that has a built-in low-pass crossover for specific connection to a subwoofer amplifier that powers a low frequency driver, typically a subwoofer.
Yes
Preamp Voltage
The preamp output rating is measured in volts (V). The higher the rating, the stronger the signal. This results in less unwanted noise being picked up.
4 volts
Built-In Equalizer
The number of graphic or parametric equalizer bands the stereo receiver is equipped with. The more EQ options, the more you will be able to adjust your music to your liking.
3-Band parametric EQ with 7 selectable tone curves (6 Preset, 1 User)
Display Type
The type of display on your receiver refers to the monitor that is used to display the source information such as song names, radio stations, or track times.

Dot-Matrix Text Display: A simple display which uses dots in specific illuminated color(s) to light up and form letters or numbers that are displayed on the receiver.

Graphic or Motion Display: Typically found in mid to high-end receivers and give your text information and receiver more life by adding motion, backgrounds, or multiple colors to your display. There are types of graphic displays such as 3D Graphic, Motion, and OEL (Organic Electroluminescent) displays. They can range from one color to full color displays and typically allow you to select from one of many built-in animations, background images, screensavers or other graphics to enhance your experience and add an extra bit of personality to your system. Some units also come with software that allow you to load your own customizable pictures or animations.

LCD Monitor Display: Can be as small as 2" or as large as 10". Some LCD displays are motorized for angle adjustment. LCD monitors display full motion video playback as well as your standard text such as track status, radio station information and more depending on the receiver's features.

TFT-LCD Monitor
Display Color
The display color refers to the color of the text and or graphics on the receiver.

Multi-Color: When more than one color is on the display, for example one part of the text is white, while the other part is blue.

Variable-Color: The display colors can be changed by the user. If the default color of text/display is blue for example, the user can change the settings to where the color turns to red. Variable color displays are typically described in detail in the item's description.

TFT-LCD Display: In-dash receivers with a video screen that display multiple colors and often times video such as DVD, navigation or other video sources.

Full Color
Button Color
Refers to the color of the physical buttons on the unit.
Variable Colors
CD Signal-to-Noise
CD Signal-to-Noise Ratio is a key specification that is often overlooked by newbies. The CD S/N Ratio measures how well the CD player silences background noise. Higher ratings in decibels (dB) indicates less noise, and generally a cleaner signal.
80 dB
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes

Playback Features

AM/FM Tuner
Most in-dash CD players have AM/FM playback allowing you listen to your favorite local radio stations.
Yes
FM Presets
The number of FM radio stations that can be stored as presets.
18
AM Presets
The number of AM radio stations that can be stored as presets.
6
CD-R/RW Playback
This feature refers to whether or not the CD player will play finalized CD-R discs and/or CD-RW discs.
Yes
MP3 Playback
This feature refers to whether or not the CD player will play discs encoded with MP3 files. To burn a MP3 encoded disc, use the "data" mode on your CD Recorder and finalize the session and/or CD.
Yes
WMA Playback
This feature refers to whether or not the CD player will play discs encoded with WMA files. To burn a WMA encoded disc, use the "data" mode on your CD Recorder and finalize the session and/or CD.
Yes
DVD / Video Playback
This feature refers to whether or not the receiver will play DVD (or other listed) video disc formats. Unless otherwise noted, the unit is not guaranteed to play recorded DVDs.
DVD
DVD+R
DVD+RW
DVD-R
DVD-RW
DivX
SVCD (MPEG-2)
VCD (MPEG-1)
DVD Region Number
This is the region number that the DVD receiver is compatible with. Almost any device that has the ability to play a DVD disk has a region number. DVD region codes restrict playback of movies that come from geographical locations outside of your residing place.
1
Dual Zone
Dual zone means the stereo is capable of playing multiple audio or video sources between two separate locations.

Please refer to the item description for more details on how dual zone works specifically to the unit you are viewing.

Yes

Audio / Video Inputs

USB Input
This feature refers to whether or not the receiver features an input to connect a USB device via standard USB or mini-USB. The USB input may be a connection on the front or rear of the unit with an extension cable for connecting devices to the receiver. Some units have an optional input that allows for a USB adapter to be purchased separately and used with the unit.
Rear
Additional Audio/Video Inputs
These inputs enable the unit to receive an audio or video signal from a separate source. There are many different types of connections and ways to accomplish this. Most common are RCA Composite cables and 3.5mm mini-jack plugs.

RCA Composite Inputs
These are your typical red, white, and yellow RCA composite cables that are common among devices with audio and video inputs. The red and white cables are dedicated for audio. The red cable is for the right channel and the white is for the left channel. The yellow cable is specifically for the video signal. Because this type of auxiliary cable contains 2 channels of audio, it will support stereo sound.

3.5mm
This is commonly referred to as a mini-jack or a headphone jack. It is a 3.5mm plug that transfers audio only. There is a right and left audio channel on the plug which allows for stereo sound playback.

3.5mm AV Input
These plugs look similar to the common 3.5mm mini-jack, however they carry a third channel dedicated for video.

Optional
This means that an auxiliary input is possible, but only with the use of an optional accessory. These optional adapters will sometimes use the CD Changer port or other port on the back of a unit that might restrict the use of other expandability features. These accessories are typically sold separately.

1 Set of Rear RCA A/V Inputs

Monitor Screen Features

Touchscreen
If a unit is touchscreen capable, you can control a majority of it's functions by touching the screen.
Yes
Monitor Angle Adjustment

Backward:
This means that the unit is able to tilt backwards so that the proper viewing angle can be achieved. On single DIN flip out monitors, this type of pivot means that the bottom of the screen stays stationary while the top of the screen retracts. On Double DIN units this means that the bottom of the screen slides forward while the top of the screen moves down, resulting in a backwards angle tilt.

Forward:
This means that the unit is able to tilt forward so that the proper viewing angle can be achieved. On single DIN flip out monitors, a forward pivot keeps the bottom of the screen stationary while the top of the screen moves forward. On select Double DIN units, a forward tilt is sometimes referred to as a reverse tilt. The bottom of the screen remains in the same position while the top of the screen moves forward.

Left/Right Angle (Horizontal):
Some monitors allow the display to be rotated to the left or right in order to have the best viewing angle possible.

Slide In/Out:
A feature mainly found in select Kenwood units. It allows the entire screen to slide in and out. This is different from a forward/backward tilt in that the entire screen moves forward or backwards as opposed to just the top or bottom.

Backward
Display Adjustment
This refers to the many ways that a units display can be adjusted.
Brightness
Color
Contrast
Dimmer
Tint

Expandability Features

Navigation
Built-in navigation is a convenient feature that allows the driver to receive driving directions and guidance.

Some in-dash head units are built-in with the navigation features, while others require an add on navigation box. Other navigation options include portable navigation units that you can take with you or attach to the dash of your vehicle.

No
Audio/Video Outputs
Audio/Video outputs are typically used to connect an overhead monitor to an aftermarket stereo. This is the number of A/V outputs that the item has. These outputs are usually RCA Composite cables.

RCA Composite Outputs
These are your typical red, white, and yellow RCA composite cables that are common among devices with audio and video inputs. The red and white cables are dedicated for audio. The red cable is for the right channel and the white is for the left channel. The yellow cable is specifically for the video signal. Because this type of auxiliary cable contains 2 channels of audio, it will support stereo sound.

1 Video RCA Output
Satellite Radio
This feature signifies whether or not the receiver is compatible with XM or Sirius Satellite Radio. "Optional" means while the receiver is capable of SIRIUS/XM playback and connectivity, you will still need to purchase an additional satellite tuner, adapter, and/or antenna.
Optional - SIRIUS or XM (Accessory required and sold separately)
HD Radio
This feature refers to whether or not the receiver is capable of receiving high-definition digital HD Radio broadcasts by either a built-in HD Radio tuner, or more commonly with the purchase of an optional HD Radio tuner box. Receivers which are HD Radio Ready generally require an additional purchase of a separate tuner.
Optional
Bluetooth Connectivity
This feature refers to whether or not the head unit is able to connect to a hands-free Bluetooth device. Head units that are Bluetooth ready typically require the purchase of an optional adapter or accessory that connects to the rear of the head unit. This optional accessory allows you to accept phone calls through your head unit and speakers. Some head units have built-in Bluetooth hands free capabilities with an included remote-mount microphone or built-in microphone.
Yes (Built-in/Included Bluetooth Controls, Adapter and Microphone Included)
Steering Wheel Control Compatible
In order to retain a vehicle's factory steering wheel remote controls, a wired-remote input is needed on the aftermarket stereo.

If "Yes", then the aftermarket stereo is compatible with steering wheel remote controls. If an additional accessory is required for the steering wheel controls to work properly, a compatible piece will be listed.

Yes (Accessory required and sold separately)
CD Changer Controls
This feature signifies whether or not the receiver has the ability to control a CD Changer. If a receiver supports this function, it is usually compatible with a same-brand CD changer without the need for an extra adapter.
No
Rear View Camera Input
Indicates if an in-dash multimedia unit has a dedicated video input for rear view cameras. These inputs allow you to plug the camera to the back of the unit to receive the cameras video signal. Usually the camera signal is transferred through an RCA cable connection.
Yes (Universal)
Memory Card Reader
Whether or not the receiver has a built-in input for removable memory cards such as SD (Secure Digital) cards or MMC (Multimedia) cards.
No

Smartphone Integration

iPod Audio Integration
This refers to whether or not the receiver can connect to an iPod and allow for audio control and playback of the iPod through the head unit. Head units that have iPod connectivity allow your iPod to be connected and controlled via the head unit, and they will typically connect through the USB input combined with your standard iPod-to-USB charging/connection cable. We encourage you to read the description of the head unit to see if an adapter is required or included, or if you can simply use your own iPod-to-USB cable.
Yes (via iPod USB Cable or Accessory Cable Below)
iPod Video Connection
This refers to whether or not the receiver can connect to an iPod and allow for video control and playback of the iPod through the head unit. Head units that have iPod connectivity allow your iPod to be connected and controlled via the head unit, and they will typically connect through the USB input combined with your standard iPod-to-USB charging/connection cable. We encourage you to read the description of the head unit to see if an adapter is required or included, or if you can simply use your own iPod-to-USB cable.
Optional (Accessory required and sold separately)
iPod Charging Adapter Required
Some Apple iPods require a charging adapter be used for the unit to fully function with the iPod.
No
Compatible Apple Devices
This list refers to the Apple devices that the product is compatible with.

Some Car stereos are compatible with iPods and/or iPhones. If the headunit can connect to an iPod or iPhone via USB or iPod connection cable, these listed iPods are compatible. This list does not apply if the iPod is being connected through the 3.5mm mini-jack plug. Newer iPods are usually compatible if the appropriate adapters are purchased and used.

Any iPods/iPhones released after the release date of this product have not been checked by the manufacturer and/or Sonic Electronix for compatibility. We therefore cannot guarantee their compatibilities or incompatibilities, including, but not limited to: playback, video, charging, and response time.

5G iPod Video (30, 60, & 80GB)
iPod Classic (120GB)
iPod Classic (80 &160GB)
iPod Nano 1st Generation (1, 2, & 4GB)
iPod Nano 2nd Generation (4 & 8GB)
iPod Nano 3rd Generation (4 & 8GB)
iPod Nano 4th Generation (8 & 16GB)
iPod Nano 5th Generation (8 & 16GB)
iPod Nano 6th Generation (8 & 16GB)
iPod Touch 1st Generation (8, 16 & 32GB)
iPod Touch 2nd Generation (8, 16 & 32GB)
iPod Touch 3nd Generation (8, 32 & 64GB)
iPod Touch 4th Generation (8, 32 & 64GB)
iPhone
iPhone 3G
iPhone 3GS
iPhone 4

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
17%
4 Star
67%
3 Star
17%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.0
Value
4.5
Features
4.3
Design
4.3
Usability
4.2

Arthur

Gilbert, AZ

Overall
Durability
Value
Features
Design
Usability

Really Nice Head Unit

September 6, 2011

I ordered the JVC KW-AVX840 last Thursday from Sonic Electronic and received it the next day. This is the fastest delivery that I ever seen.... Thanks Sonic Electronics!!! Regarding the JVC KW-AVX840... I had it professionally installed at Best Buy... The head unit itself is really good... I like the screen size and the image quality. The sound quality is awesome!!! Much better than the stock radio... The touch panel is really responsive... I do not see any lags at all... I like all the functions on this HU. The only issue that I'm having is as follow: I was not able to get any video and sound to display through my wife's iphone 4 (using JVC KS-U30 cable)... I than tried setting "AUDIO INPUT" to "A/V IN" and "VIDEO INPUT" to Ipod... This allowed me to display both video with sound... But this only worked when I used the "External Mode" after using Motion X software... I have to close out Motion X software first and than go to play video. It will not work if I don't use Motion X software first or if I have my Car engine turned on (with emergency break on). I even tried rebooting my iphone 4 and turning the car engine on and off... I think this is a really strange behavior. I also have Voice Command issue... I also tried using my Android phone and it still have the same issue. It does not pick up the correct voice command... If I say: "Call Art Cell" it will dial a different number. I see this issue on my wife's Iphone 4 and my Android cellphone. If I use the voice commands on both phones by them self.. it works just fine... It was able to pickup voice command correctly. But if I tried it again using the microphone provided by the JVC head unit, it will not pickup the correct voice command. I also had a backup camera installed onto this HU... it works perfectly!!! I bought this HU for the bluebooth hand free calling and music streaming, and the ability to connect a backup camera... I really think this is a good HU... But I wish that it would be easier to setup... It took me three days to figure out how to get video and sound to display correctly using my wife's iphone 4. I also wish that the "Voice command" can pickup the correct commands...

4 of 4 found this helpful

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Brandon

claremont, CA

Overall
Durability
Value
Features
Design
Usability

awsome product but the bluetooth is aggrivating at the least

November 8, 2011

This head unit is sweet for the money. I have no regrets in buying it. The only issue is the bluetooth for some reason doesnt work all the time. If i make a call from my phone (not the head unit itself) the head unit wont read the call. It will still Bluetooth the call but no display will come up. On top of that i use my phone for all of my music. The Bluetooth is awsome when it wants to work. The phone will be connected but no sound coming out of the speakers. So i have to disconect then reconect. Sometimes i have to shut the car off completly to get my Bluetooth connection again. I'm going to take this up with JVC to see what the problem is. Other then that, this thing is sick. 99% happy with this unit.

2 of 2 found this helpful

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Justin

Australia

Overall
Durability
Value
Features
Design
Usability

Awesome

October 20, 2011

I have just had the head unit installed and it is excellent. I highly recommend this head unit. It is good value.

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bare

Greenville, MS

Overall
Durability
Value
Features
Design
Usability

lot of options for the price.

August 4, 2011

I have only had the unit for 1 week, but so far it has exceeded my expectations. It was an upgrade from the factory radio in my tundra. I left the OME speakers and added a sub and amp and wow, what a difference. I like the detectable face and the touch screen works great. The menus are easy to navigate and the blue tooth works great with my Android phone... audio and phone. The ability to adjust the background colors is neat as well. I only wish it would allow you to watch the eq bounce. I recommend this unit for the price.

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Luis

Miami, FL

Overall
Durability
Value
Features
Design
Usability

Liked better its predecessor

January 5, 2012

I bought this one to replace a stolen AVX 740. Although it is a great unit. I don't like the fact that you can't turn it off (there's no on off switch, anywhere). As I have a sub and an amplifier which receive on signal from it, there's no way to turn them off unless you take front panel off this unit. So if I only want to keep it there for backup camera use, I have to keep my amps on, which I don't like.

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Don

Canada

Overall
Durability
Value
Features
Design
Usability

KW-AVX840

November 12, 2011

Works, sounds very good. Easy to use.

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Accessory Tools and Products

Accessories added

JVC KS-U30

This iPod cable is made specifically for the audio and video playback of this in-dash receiver.

Your Price $34.95

Axxess ASWC

Universal steering wheel control interface with automatic programming

Your Price $59.99

PAC SWI-RC Steering Wheel Control Interface

Steering Wheel Control Interface for Alpine, JVC, Clarion, Kenwood, Pioneer, Sony Radios and More

Your Price $49.95

BOYO Vision VTK-350

Universal rear view backup camera with wide viewing angle and waterproof housing

Your Price $44.99

Monster Cable MPC CLNKIT-SM CN

2 Bottles of LCD Screen Clean with Cleaning Cloth

Your Price $2.99

Scosche TK12 Car Stereo Installation Kit

Includes panel removal tool, wire cutter/stripper, test light, RCA cable runner, screwdriver, and more!

Your Price $12.99

9-Piece Durable Nylon Plastic Pry & Chisel Tool Set

Helps with car stereo installation for use with dash and trim.

Your Price $14.99

18 Butt Connectors, 2 Ring Terminals, and Zip Ties

Great for connecting your car stereo wires to the harness.

Your Price $4.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

AutoSound 2000 CD-104

Audiophile reference series test disc for evaluation of all audio components.

Your Price $11.99

AutoSound 2000 CD-102

High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

AutoSound 2000 CD-105

Demonstrates different characteristics and specifications of an audio system.

Your Price $11.99

Product Summary

Manufacturer

Model Number

KW-AVX840

UPC

046838044380

Weight

8.25lbs

Internal SKU

kwavx840

Internal Product ID

33387

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: JVC KW-AVX840