Find car audio that fits your 2003 Audi A4 Quattro

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• H7 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

• Bluetooth audio streaming interface for select 1998-2010 vehicles from Audi, Volkswagen
• Adds Bluetooth music, USB music player, and AUX input
• Supports navigation app voice prompts
• USB port supports phone charging
• Magnetic phone mount included

• Radio removal tool for select 1998-2006 Volkswagen, Audi, and Mercedes vehicles

• Replacement Power Antenna for Select Vehicles
• Replaceable Mast
• Fully Automatic

• Auxillary Cable Input Car Stereo Kit for select 1998-2009 vehicles from Audi
• Easy connection between the car stereo and MP3/smartphone/iPod
• Includes a 5 ft. 3.5mm audio phone jack cable

• Factory Antenna to Aftermarket Radio Adapter
• Compatible with select 1973-2025 vehicles from Audi, Mercedes-Benz, Volkswagen Vehicles
• Factory antenna with flat plug to aftermarket radio
• A capacitor is included to match the impedance

• 6.5" Multi Speaker Adapter
• Compatible with select 1996-2009 vehicles from Audi Vehicles

• select 1998-2025 vehicles from Ford, BMW, Chevrolet Vehicles
• Aftermarket Antenna Female (Motorola Plug) to Factory Radio Male (Proprietary Plug)

• Adapters for 6" - 6-3/4" Speakers
• Fits Select 2000-2010 Audi A3 and A4 Vehicles
• Break-Away Tab Design
• Fits Front or Rear Doors

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

• 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

• 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

• Single-DIN or Double-DIN Dash Kit
• Painted scratch-resistant matte black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

• Aftermarket Radio To Factory Antenna Adapter (Amplified)
• Compatible with select 1973-2025 vehicles from Audi, Mercedes-Benz, Volkswagen Vehicles
• Includes Power Wire For Antenna Booster
• Can Be Used In Place Of 40-VW54

• Compatible with select 1996-2025 vehicles from Mercedes-Benz, Audi, Chevrolet Vehicles
• For European Vehicles
• Plugs Directly into Vehicles Harness
• Durable Plastic and Metal Materials

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

• Fits select 2002-2020 vehicles from Audi
• Designed for use with iDataLink ADS-MRR or iDataLink ADS-MRR2 module (Sold separately)
• Retains select factory features
• Provides accessory power, navigation and illumination outputs

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

• Volkswagen Aftermarket Antenna Adapter
• Compatible with select 1973-2020 vehicles from BMW, Audi, Volkswagen Vehicles
• Coax cable powered amplified antenna

• Factory Radio to Aftermarket Antenna Adapter
• Compatible with select 1982-2025 vehicles from Audi, Mercedes-Benz, Volkswagen Vehicles