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Boss 628UA

Single DIN AM/FM Digital Media Car Stereo w/ Detachable Front Panel, USB Input, & 3.5mm Aux Input

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General Features:

  • Boss 628UA In-Dash Digital Media Receiver
  • Power Output:
    • Peak: 50 watts x 4 channels
  • Detachable faceplate (Faceplate Case Included)
  • Remote control included
  • Shallow Mounting Depth
    • 7.0" L X 2.0" W X 3.8" D
  • Authorized Platinum Internet Dealer
  • 1 year Sonic Electronix, and 2 years Manufacturer's warranty

Playback and Audio Features:

  • AM/FM tuner with 18FM/12AM presets
  • SD Card Playback (located behind faceplate)
  • ID3-Tag Information Display
  • 3.5mm Front Audio Auxiliary Input
  • Front USB Input (Note: In our tests we show it will not connect with iPhone/iPod/Android - More compatibility info to come as available)
  • 2 Sets of 2V preamp outputs (front & rear)

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.

Single 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.

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.
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
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.
2 Pairs (Front and Rear)
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.
2 volts
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.

Dot-Matrix Text Display
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.

Button Color
Refers to the color of the physical buttons on the unit.

Playback Features

AM/FM Tuner
Most in-dash CD players have AM/FM playback allowing you listen to your favorite local radio stations.
FM Presets
The number of FM radio stations that can be stored as presets.
AM Presets
The number of AM radio stations that can be stored as presets.
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.
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.
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.

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.
Number of Front USB Inputs
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.

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.

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.

Front 3.5mm Audio Input

Warranty and Return Policy

Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



Verified Purchase

June 18, 2015

Super basic functions. USB does not interface with smartphones and doesn't provide enough power to charge an iPhone 6. However, for the price it works well and sounds decent.

20 of 25 found this helpful

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you get what you pay for

October 23, 2015

If you're just looking for something basic with an aux cord because you want to have one asap, this one works. It's the best head unit you can get for 30 dollars, but it's still a 30 dollar head unit. The time only shows when you press a button, it doesn't show by default. The eq visualizer only works some of the time. Don't expect the USB to charge your phone or play music. The installation is confusing and the directions that come with it are almost non-existant.

5 of 6 found this helpful

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Newton, n.c. 28658

Good value for the money.

November 28, 2016

There was mixup in the ordering. I ment to order 1 radio. The mixup was with my password and getting it changed. I did not think the first order went through. It is still in the box it came in and I would like to return it.

0 of 0 found this helpful

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Orlando, FL

Awesome deal! Beautiful look

May 11, 2016

Good product, great price! Great look! Love how simple is to use it, and it looks expensive but it's a great deal.

0 of 0 found this helpful

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Kennesaw, GA

Verified Purchase
This unit cost me money even after returning a defective unit

May 5, 2016

This unit installed fine, but when it was hot outside the display would stop working. This issue started occurring the day after installation. Even though I was returning a defective unit, I had to pay the $9.00 return shipping. Very frustrating!

0 of 0 found this helpful

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fresno, CA

Verified Purchase
Great product

January 15, 2016

Sound quality is excellent easy to install. I am very satisfied with this purchase!

0 of 0 found this helpful

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Bluefield, WV

great value and deals

October 20, 2015

Easy and great customer service .and I would recommend for family and friends to shop with yall

1 of 2 found this helpful

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Accessory Tools and Products

Accessories added


3 Ft Micro USB Charge and Sync Cable

Your Price $2.99

6 Ft. 3.5mm to 3.5mm Aux Cable (Black)

2 meter (6 feet) Aux to Aux Cable Connector, Great for iPod / MP3 Player headphone jack connection to car stereo aux input.

Your Price $4.99

Scosche TK12 Car Stereo Installation Kit

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

Your Price $20.99

Five Piece Installer's Panel Removal Tool Kit

Helps with removing dash and trim panels during car stereo installation.

Your Price $15.99

18 Butt Connectors, 2 Ring Terminals, and Zip Ties

Great for connecting your car stereo wires to the harness.

Your Price $4.99

Install Bay BS9HD

Heavy Duty Metal Mounting Backstrap

Your Price $1.29

SoundKase DFC1X

Soft-Sided Nylon Receiver Faceplate Case

Your Price $6.99

Scosche SPL Meter

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

Your Price $33.95

Browse 5 questions and 11 answers
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Why did you choose this?
Sonic Electronix Store
I'm familiar with the item
Judi H on Jan 15, 2017
sounded like a good deal.
dan j on Oct 24, 2016
I need a new stereo to hook up my new subs I got. Plus also I couldn't turn down how cheap it was. It's a great deal!
Wesley M on Dec 22, 2016
Recognizable brand. It's a gamble considering its missing quite a bit of information like RMS.
Stephen H on Sep 24, 2015
Is this compatible with iPhones?
A shopper on Apr 27, 2015
· Add Answer · I Have This Question Too (4)
the factory stereo has factory amp will this hook up to it and work power antenna ?
brian b on Aug 2, 2015
Best Answer: I believe so. I can't remember for sure whether the 4th non-speaker connection on the back of the head unit was for the power antenna, but I know the wiring harness adapters had a wire for that, although the XTerra I put this into doesn't have a power antenna. I remember the 4 speakers (+ and -), an always hot, an ignition hot, and ground, but there is one more wire from the head unit. The wiring harness adapters (and the car's wiring harness) also had a wire for the dash illumination (which the head unit does NOT have). Additionally, the wiring harness adapters had a pair of wires for an after-market amplifier, although neither the head unit nor the factory wiring had wires to connect to them. I'm fairly confident, though, that the 12th wire from the head unit was the power antenna. I hope this helps some. Sorry I can't be certain.
Reply · Report · Kevin L on Aug 2, 2015
· Add Answer · I Have This Question Too (0)
Does it work for a Pontiac g6 sedan gt 2007?
Austin W on Aug 31, 2015
Best Answer: Yes! This will fit, but you need to make sure you get the right dash kit.
Metra 99-3303
Metra 99-3303
Reply · Report · Seth WStaff on Aug 31, 2015
· Add Answer · I Have This Question Too (0)
is it compatible with iPhones ?
A shopper on Jun 17, 2015
Best Answer: Nope. Only through the AUX connection. No interface and doesn't charge the iPhone through USB.
Reply · Report · David T on Jun 18, 2015
· Add Answer · I Have This Question Too (0)

Product Summary


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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: Boss 628UA