See all parts that fit your 2003 A4
Install a New Car Stereo in select 2014-2020 3 and Yaris and Yaris iA
Product highlights
• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required
Connect your factory antenna to a new aftermarket radio for select 1973-2025 vehicles from Audi, Mercedes-Benz, Volkswagen
$7.99
List price $11.99
Install a new Single-DIN or Double-DIN car stereo in select 2002-2009 S4 and A4 and RS4 (Matte Black)
$27.99
List price $67.99
6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)
$399.00
List price $600.00
Double DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)
$169.00
List price $189.00
Please use our Fitment Guide to determine specific compatibility for the submodel and audio features
The vehicle you have selected 2003 Audi A4 is not compatible. Change vehicle or See list of compatible similar products
6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera
$329.99
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready
$349.99
List price $420.00
7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)
$329.95
List price $349.95
6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)
$599.99
List price $750.00
480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
$84.99
List price $94.99
600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$109.00
List price $119.99
6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto and Phone Mirroring
$89.99
List price $269.99
360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
$99.95
List price $139.95
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• Color coded wires for easy installation
• No cutting or splicing required
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Scosche VW01BCB Wiring Harness
• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required
• Pre-terminated with Butt Connectors
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Axxess AXDI-A12 Wiring Interface
• Wiring interface to install aftermarket stereo in select 2002-2013 vehicles from Audi
• Designed for non-amplified and amplified systems
• Provides accessory power and NAV outputs
• Retains R.A.P, balance and fade, and chimes
• Pre-wired AXSWC harness (AXSWC sold separately)
$163.99
List price $182.99
• OEM amplifier retention harness for aftermarket stereos
• Compatible with select 1965-2017 vehicles from Volkswagen, Audi, Mercedes-Benz (European vehicles)
• Connects to the vehicle's factory harness
$16.00
List price $24.00
• Fits select 2002-2015 vehicles from Audi
• Designed for use with iDataLink ADS-MRR or iDataLink ADS-MRR2 module (Sold separately)
• Retains select factory features
• Provides navigation and illumination outputs
$79.99
List price $99.99
iDataLink Maestro HRN-SR-AU1 Wiring Harness
• Fits select 2002-2007 vehicles from Audi
• Designed for use with iDataLink ADS-MSR module (Sold separately)
• Retains factory amplifier and steering wheel controls
• Provides accessory power, navigation and illumination outputs
$34.99
List price $43.99
Crux SWRAD-55 Wiring Interface
• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified and amplified models
• Micro-B USB Updatable
• Pre-programmed to retain factory Steering Wheel Controls
• Color coded wires for easy installation
• No cutting or splicing required
$126.90
List price $197.40
Crux DKGM-49 Stereo Replacement Interface
• Stereo Replacement Interface with Dash Kit
• Fits select 2006-2020 vehicles from GMC, Chevrolet, Buick Vehicles
• Accommodates ISO Double DIN Mount
• Retain steering wheel controls and chime functions
(41)
$129.60
List price $201.60
Manufacturer:
Model Number:
70-7903L
Weight:
0.45lbs
Internal SKU:
70-7903l
Internal Product ID:
193709
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Hands-Free Bluetooth Headset with 10 Hours of Talk Time (89186J)
$19.99
List price $69.99
Add Auxiliary Input to Factory Radio in 1997-2004 Chevrolet Corvettes (Use with PAC AUX-BOX or iPAC-OEM)
(2)
$6.95
List price $12.95
In-Dash CD, MP3, WMA Car Stereo Receiver with Front Panel Aux-In and Remote
(8)
$79.99
List price $119.99
Powerbag Deluxe Backpack by ful (Red) RFAP-0083F
Backpack with Internal Battery for Multiple Device Charging (RFAP-0083F-RD)
(2)
$89.99
List price $169.99
Kicker EB91B Black MicroFit In-Ear Headphones/EarBuds
MicroFit™ In-Ear Black Monitor Ear Buds
(42)
$14.95
List price $39.95
Portable Media Speaker for iPod, iPhone, iPad, Android, Smartphones, & Other Media Devices
(3)
$6.00
List price $24.99
Image Series In-Ear Headphones with Noise-Isolation Technology and Built-In Strain Relief (1010471)
(31)
$54.99
List price $79.99
In-Dash CD Receiver w/ SAT Ready and Illuminated Front USB and AUX Inputs
(9)
$109.99
List price $170.00
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
