See all parts that fit your 2003 A4
OEM USB Port Retention Cable for Select Subaru Vehicles
Product highlights
• OEM USB Port
• Plug and Play
• Retains the Factory USB Port when Installing New Radio
• For Select Subaru Vehicles
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
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
$339.99
List price $420.00
360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
$99.95
List price $139.95
480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
$84.99
List price $94.99
6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)
$469.99
List price $620.00
600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$109.00
List price $119.99
600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers
$49.99
List price $59.99
250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers
$319.00
List price $339.00
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• Factory USB Retention Adapter
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• Compatible with select 2009-2025 vehicles from Chevrolet, GMC, Cadillac
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iDataLink Maestro ACC-USB2 USB Adapter
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iDataLink Maestro ACC-USB-RAM USB Adapter
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iDataLink Maestro ACC-USB-TO3 USB Adapter
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iDataLink Maestro ACC-USB1 USB Adapter
• USB adapter for select 2008-2025 vehicles from Nissan, Ford, Chrysler
• Retains vehicle's factory USB port
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• Factory USB Retention Adapter
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Manufacturer:
Model Number:
USB-SB1
Weight:
0.50lbs
Internal SKU:
usbsb1
Internal Product ID:
159181
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Double DIN Stereo Dash Kit for select 2004-2006 GTO
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$19.99
List price $31.99
51 Foot Spool 1/0 AWG Frosted Red Wire (RFW1R-51)
$659.99
List price $659.99
200W 6.5" 2-Way Mobile Monitor MM Series Coaxial Speakers w/ Silk Tweeters (Marine Certified)
(49)
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Multi-Camera Interface for Select 2015-2017 Ford Automobiles
$415.00
List price $549.00
6-1/2" or 6-3/4" Speaker Adapter for select 2005-2009 Vue and Equinox
(4)
$13.99
List price $14.80
Factory Radio Android Auto, Apple CarPlay and Navigation Integration Upgrade for select 2003-2005 RX330 and GX470 and Land Cruiser
$549.95
List price $559.95
600W Peak (300W RMS) 6.5" HXM Series 2-Way Coaxial Marine Tower Speakers with RGB LED (White)
$549.99
List price $549.99
6x9" 3-Way dB Series Marine Certified Coaxial Car Speakers
(75)
$94.99
List price $179.99
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