Garage
Shop

See all parts that fit your 2004 Focus

GROM Audio AUDO4 (GROM-MST4-AUDO)

Android and iOS Smartphone Integration for Select 2004-2009 Audi Fiber Optic Radios

GROM Audio
Shop all GROM Audio
highlight-star-icon

• Android, Bluetooth, iPhone Integration Kit
• Compatible With Select 2004-2009 Audi Fiber Optic Radios
• USB, AUX, Bluetooth, Android, iPod Car Integration
• Android in-car play, charge and control
• Plugs Directly Into Vehicles Harness
• Two EXT ports for AUX-IN, Bluetooth and iPod
• Streaming Audio for Android 4.1 and Above

See compatible vehicles Learn more about the audo4
No Fit Icon

Doesn't fit your 2004 Focus

Similar items | Update vehicle | Vehicle store
Thanks , You Pay:

$289.99

 with warranty
Starting at $27/mo or 4 payments of $73 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Dollar Icon
VIP Product Get $29.00 in rewards to spend later
Quantity
Available: Ships in 10-14 days
Brand new

Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts

Loading...
40-VW10 main

Metra 40-VW10 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1973-2025 vehicles from Audi, Mercedes-Benz, Volkswagen

22
-33.36%

$7.99

List price $11.99

70-1770 main

Metra 70-1770 Wiring Harness

Install a new car stereo in select 1986-2004 vehicles from Ford, Mercury, Mazda

22
-14.31%

$5.99

List price $6.99

99-5806 main

Metra 99-5806 Dash Kit

Install a new Single-DIN car stereo in select 1999-2004 Focus and Cougar

3
-10.00%

$26.99

List price $29.99

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)

43
-16.69%

$149.95

List price $180.00

VSP65KIT main

NVX VSP65KIT

750W Peak (250W RMS) 6.5" V-Series 2 Way Component Car Speakers

84
-15.39%

$109.99

List price $129.99

NSP68 main

NVX NSP68

540W Peak (180W RMS) 6x8" N-Series 2 Way Coaxial Car Speakers

59
-16.67%

$79.99

List price $95.99

P1683 main

Rockford Fosgate Punch P1 P1683

260W Peak (130W RMS) 6x8" Punch Series 3 Way Coaxial 4-ohm Speakers

85
VSP68 main

NVX VSP68

600W Peak (200W RMS) 6x8" V-Series 2 Way Coaxial Car Speakers

46
-16.67%

$89.99

List price $107.99

Limited time!
KW-V660BT main

JVC KW-V660BT

6.8" Double DIN CD/DVD Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

10
-16.70%

$399.00

List price $479.00

Limited time!
TS-G6820S main

Pioneer TS-G6820S

500W Peak (80W RMS) 6x8" G-Series 2-way 4-ohm Coaxial Car Speakers

4
-23.09%

$49.99

List price $65.00

Description


GROM Audio brand icon

Authorized dealer


General Features:

  • M.O.S.T. Fiber Optic Smartphone Vehicle Integration Kit for Android, iPhone and Bluetooth
  • Compatible with Select 2004-2009 Audi Fiber Optic Radios
  • USB, AUX, Bluetooth, Android, iPod Car Integration
  • Plugs directly into vehicles harness
  • Android in-car play, charge and control
  • Two EXT ports for AUX-IN, Bluetooth and iPod
  • Provides 5V charging via standard USB port
  • Bluetooth handsfree and wireless playback
  • Control over your iPhone and mobile phone
  • Streaming audio for Android 4.1 and above
  • Fully compatible with GROM Audio's Free DashLinQ Android App for Simple and Safe Use of your Android Phone in Driving Mode
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Specifications:

  • For iPod functionality you will need the 5ft GROM Audio C-IPD2 or the 15ft GROM Audio C-IPD2L iPod integration harness
  • Add auxiliary connection and 5V charging capabilities with the GROM Audio C-35USB
  • USB stick supports MP3, WMA, iTunes (AAC/MP4), WAV & FLAC files
  • Your USB disk or Android phone becomes a virtual CD changer
  • Android Phone play, control and charge. If you have an Android Phone (including but not limited to Samsung Galaxy S or S II) you can integrate it to your car stereo via USB
  • The GROM Bluetooh Dongle allows you to use your phone in the car hands free, stream your MP3 music from your phone to the factory stereo via Bluetooth Audio playback, control your MP3 music with the car stereo or steering wheel controls via Bluetooth wireless audio control

Vehicle Qualifiers:

Not compatible with MMI 2G Basic Radio

MP3 support, MMI SW: 33.6.0 and newer





Check out the AUDO4 Owner's Manual



Product history:

GROM Audio AUDO4 thumbnail
(newest, current model)
GROM Audio AUDO thumbnail
(previous model, replaced by GROM Audio AUDO4 (GROM-MST4-AUDO))

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2004 Ford Focus is not compatible. Change vehicle or See list of compatible similar products


Loading...
REF507CF_2_MET-825601_2 main

2 Infinity REF507CF (INFSPKRF507CFUS) w/ Adapter Plates

390W Peak (130W RMS) 5.25" Reference Series 2-way 3-ohm Component Speaker System with Speaker Adapter Plates

3
-12.14%

$477.88

List price $543.88

BV850ACP main

Boss Elite BV850ACP

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera

5
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

2
-16.67%

$349.99

List price $420.00

iLX-W650 main

Alpine iLX-W650

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

123
-5.72%

$329.95

List price $349.95

DMH-W4660NEX main

Pioneer DMH-W4660NEX

6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)

2
-20.00%

$599.99

List price $750.00

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3

Best selling similar products

AAI-GM12 small

PAC AAI-GM12

• Dual auxiliary audio input interface
• Allows for direct interface of any pre-amp level audio source to the factory radio
• Compatible with select 2000-2012 vehicles from Chevrolet, GMC, Pontiac

(5)

$54.99

List price $119.00

NIS02B3 small

GROM Audio NIS02B3 Infiniti and Nissan Bluetooth Streaming Kit (GROM-BT3-NIS02)

• Hands Free Bluetooth Car Kit
• Compatible With Select 2004-2013 Infiniti and Nissan Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from Your Smartphone or Bluetooth Enabled Music Player

(4)

$179.99

List price $179.99

VAGTB3 small

GROM Audio VAGTB3 Bentley and VW Bluetooth Streaming Kit (GROM-BT3-VAGT)

• Hands Free Bluetooth Car Kit
• Compatible With Select 1998-2010 Bentley and VW Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

(2)

$179.99

List price $179.99

AUDU3 small

GROM Audio AUDU3 (GROM-USB3-AUD)

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 1998-2009 Audi Stereos
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

(1)

$174.99

List price $174.99

NISCDCB3 small

GROM Audio NISCDCB Infiniti and Nissan Bluetooth Streaming Kit (GROM-BT3-NISCDC)

• Hands Free Bluetooth Car Kit
• Compatible With Select 1999-2010 Infiniti and Nissan Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

$179.99

List price $179.99

AXBUCS-NI246V small

Axxess AXBUCS-NI246V

• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

$45.99

List price $51.99

TOYFB3 small

GROM Audio TOYFB3 Lexus Bluetooth Streaming Kit (GROM-BT3-TOYF)

• Hands Free Bluetooth Car Kit
• Compatible With Select 1999-2003 and Lexus Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

(1)

$179.99

List price $179.99

BPTA1 small

GROM Audio BPTA1

• Auxillary Cable Input Car Stereo Kit for select 2008-2012 500 and 8C
• Easy connection between the car stereo and MP3/smartphone/iPod
• Includes a 5 ft. 3.5mm audio phone jack cable

$96.99

List price $96.99

Specifications & Details


General Features
Type of Factory Radio Improvement Harness
Plug-N-Play
Provides a Charge
Yes
Factory Radio Improvement Features
Adds auxiliary input
Adds USB input
Android Smartphone Integration
Bluetooth Integration
iPod/iPhone Integration
Number of Device Connections
2
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

AUDO4

Weight:

0.75lbs

Internal SKU:

audo4

Internal Product ID:

97854

Customer Ratings & Reviews


GROM Audio AUDO4 (GROM-MST4-AUDO) thumbnail image

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


DDX516 small

Kenwood DDX516 (DDX-516)

In-Dash Double DIN DVD, CD, MP3 Receiver with 6.1" Touchscreen LCD Monitor and Front Panel Aux-in

(7)

$399.99

List price $749.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2004 Ford Focus

2002 Subaru Outback

2005 Ford Taurus

2011 Volkswagen Eos

2003 Dodge Durango

2015 Mazda 6

2011 Infiniti G37

1995 Ford Explorer

2005 Ford Five Hundred

2002 Mitsubishi Eclipse Spyder

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.