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Metra 86-9001

1998-2006 Volkswagen/Audi/Mercedes Radio Removal Tool

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1998-2006 Volkswagen/Audi/Mercedes Radio Removal Tool

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

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This product fits your 2003 A8 Quattro
5
Was $19.99 Details
$17.99

In stock

Only 3 Left!

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

Metra 40-VW10 Antenna Adapter

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

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

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

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This product fits your 2003 A8 Quattro
20
Was $8.99 Details
$7.99

In stock

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

Crux BTS-VW1

Bluetooth Audio Streaming, USB Connectivity & Line Input Interface for Select 1999 - 2008 Volkswagen & Audi Vehicles

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Bluetooth Audio Streaming, USB Connectivity & Line Input Interface for Select 1999 - 2008 Volkswagen & Audi Vehicles

• Adds Bluetooth Music Streaming
• For Select Audi & Volkswagen Vehicles
• Adds an AUX Input
• Navigation App Voice through Factory Speakers
• Dimension: 3.5" L x 2.5" W x 7" H

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This product fits your 2003 A8 Quattro
Was $161.95 Details
$99.95

In stock

Only 1 Left!

• Adds Bluetooth Music Streaming
• For Select Audi & Volkswagen Vehicles
• Adds an AUX Input
• Navigation App Voice through Factory Speakers
• Dimension: 3.5" L x 2.5" W x 7" H

Scosche VWA3RB Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1998-2025 vehicles from Ford, BMW, Chevrolet

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Connect your factory antenna to a new aftermarket radio for select 1998-2025 vehicles from Ford, BMW, Chevrolet

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

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This product fits your 2003 A8 Quattro
1
Was $19.99 Details
$9.95

In stock

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

GROM Audio AUDU3 (GROM-USB3-AUD)

Android and iOS Smartphone Integration for Select 1998-2009 Audi Vehicles

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Android and iOS Smartphone Integration for Select 1998-2009 Audi Vehicles

• 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

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This product fits your 2003 A8 Quattro
1
$174.99

In stock

Only 3 Left!

GROM Audio Audi Smartphone Music Streaming Kit (GROM-USB3-AUD BTD)

Control Your Streaming Music from an Android or iOS Smartphone on Select 1998-2009 Audi Factory Radios

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Control Your Streaming Music from an Android or iOS Smartphone on Select 1998-2009 Audi Factory Radios

• 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

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This product fits your 2003 A8 Quattro
10
Was $239.98 Details
$238.99

In stock

Only 2 Left!

• 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

Metra 40-VW30 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1973-2017 vehicles from BMW, Volkswagen, Audi

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Connect your factory antenna to a new aftermarket radio for select 1973-2017 vehicles from BMW, Volkswagen, Audi

• Antenna Adapter Kit
• Compatible with select 1973-2017 vehicles from BMW, Volkswagen, Audi Vehicles
• For adding source units with FM modulator

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This product fits your 2003 A8 Quattro
2
Was $21.99 Details
$18.99

In stock

• Antenna Adapter Kit
• Compatible with select 1973-2017 vehicles from BMW, Volkswagen, Audi Vehicles
• For adding source units with FM modulator

Metra 72-9003

Speaker Harness for select 1996-2010 vehicles from Audi

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Speaker Harness for select 1996-2010 vehicles from Audi

• Universal Speaker Harness
• Compatible with select 1996-2010 vehicles from Audi Vehicles
• Plugs Directly into Vehicles Harness
• Durable Plastic and Metal Materials \

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This product fits your 2003 A8 Quattro
1
Was $13.99 Details
$11.99

In stock

• Universal Speaker Harness
• Compatible with select 1996-2010 vehicles from Audi Vehicles
• Plugs Directly into Vehicles Harness
• Durable Plastic and Metal Materials \

Metra 40-VW20 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1982-2025 vehicles from Mercedes-Benz, Audi, Volkswagen

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Connect your factory antenna to a new aftermarket radio for select 1982-2025 vehicles from Mercedes-Benz, Audi, Volkswagen

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

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found car based on your search
This product fits your 2003 A8 Quattro
Was $11.99 Details
$9.99

In stock

Only 1 Left!

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

Metra 40-VW53 Antenna Adapter

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

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

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

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This product fits your 2003 A8 Quattro
3
Was $15.99 Details
$13.99

Available

Ships in 10-14 days

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

Limited time!

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2-way 4-ohm Coaxial Car Speakers (CSC654)

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600W Peak (200W RMS) 6.5” CS Series 2-way 4-ohm Coaxial Car Speakers (CSC654)

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome zero-protrusion tweeters with neodymium magnets
• Polypropylene cone material with Extended Voice Coil (EVC) technology
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Adapter/Wire Harness available and sold separately

found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
108
Was $99.99 Details
Save $23.03
$76.96 /pair

In stock

NVX ESP65

360W Peak (120W RMS) 6.5" E-Series 2-Way Coaxial Speakers with 13mm PEI Dome Tweeters

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360W Peak (120W RMS) 6.5" E-Series 2-Way Coaxial Speakers with 13mm PEI Dome Tweeters

• 180 watts Peak Each, 60 watts RMS Each
• 1/2" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
8
Was $53.99 Details
$44.99 /pair

In stock

Only 3 Left!

Infinity Kappa 603CF (INFSPKKA603CFAM)

660W Peak (220W RMS) 6.5" Kappa Series 2 Way 3-ohm Component Speaker System

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660W Peak (220W RMS) 6.5" Kappa Series 2 Way 3-ohm Component Speaker System

• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Silk Edge Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
5
Was $449.95 Details
$399.95 /set

In stock

• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Silk Edge Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Alpine R2-S652

600W Peak (200W RMS) 6.5" R-Series PRO 2-way 4-ohm Hi-Res Component Speaker System

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600W Peak (200W RMS) 6.5" R-Series PRO 2-way 4-ohm Hi-Res Component Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome tweeters
• Reinforced Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
Was $450.00 Details
$399.95 /set

In stock

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome tweeters
• Reinforced Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hertz DSK130.3

240W Peak (120W RMS) 5.25” Dieci Series 2-way 4-ohm Component Speaker System

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240W Peak (120W RMS) 5.25” Dieci Series 2-way 4-ohm Component Speaker System

• 120 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome-Cone tweeters with high-energy neodymium magnets
• Water-repellent Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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found car based on your search
Fits multiple locations in your 2003 A8 Quattro
  • Lower Front Door
  • Rear Door
Was $225.00 Details
$199.99 /set

In stock

• 120 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome-Cone tweeters with high-energy neodymium magnets
• Water-repellent Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

JL Audio C1-650x

150W Peak (100W RMS) 6.5" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

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150W Peak (100W RMS) 6.5" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

• 75 watts Peak Each, 50 watts RMS Each
• 3/4" Silk-suspended Aluminum Dome ferrofluid-cooled tweeters with neodymium magnets
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
30
$119.99 /pair

In stock

• 75 watts Peak Each, 50 watts RMS Each
• 3/4" Silk-suspended Aluminum Dome ferrofluid-cooled tweeters with neodymium magnets
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Hertz CK 165 L

600W Peak (200W RMS) 6.5" Cento Series 2-way 4-ohm Component Speaker System

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600W Peak (200W RMS) 6.5" Cento Series 2-way 4-ohm Component Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• 1" Tetolon Soft Dome tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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Up to $12 savings on install accessories you need

found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
1
Was $450.00 Details
$399.99 /set

In stock

Only 1 Left!

• 300 watts Peak Each, 100 watts RMS Each
• 1" Tetolon Soft Dome tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Hertz CK 165

570W Peak (190W RMS) 6.5" Cento Series 2-way 4-ohm Component Speaker System

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570W Peak (190W RMS) 6.5" Cento Series 2-way 4-ohm Component Speaker System

• 285 watts Peak Each, 95 watts RMS Each
• 1" Tetolon Soft Dome tweeters with neodymium magnets
• Semi-Pressed paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

FREE Baffles, Damping, and More at Checkout! Shop deal
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VIP Product Get $40.00 in rewards to spend later

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Up to $12 savings on install accessories you need

found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
Was $450.00 Details
$399.99 /set

In stock

• 285 watts Peak Each, 95 watts RMS Each
• 1" Tetolon Soft Dome tweeters with neodymium magnets
• Semi-Pressed paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

JL Audio C1-650se

450W Peak (100W RMS) 6.5" C1 Series 2-Way 4-ohm Component Speaker System

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450W Peak (100W RMS) 6.5" C1 Series 2-Way 4-ohm Component Speaker System


• 50 watts RMS Each
• 1" Silk Dome Tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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VIP Product Get $23.00 in rewards to spend later

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Up to $12 savings on install accessories you need

found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
$229.99 /set

In stock


• 50 watts RMS Each
• 1" Silk Dome Tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

JBL GX608C (GX608CAM)

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

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420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

• 210 watts Peak Each, 70 watts RMS Each
• 1-13/16" Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.3 ohm
• Sensitivity: 92 dB

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Up to $12 savings on install accessories you need

found car based on your search
Fits the following location in your 2003 A8 Quattro
  • Rear Deck Corner
5
Was $119.99 Details
$99.99 /set

In stock

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    FAQ for your 2003 A8 Quattro

    Q: Can I upgrade the factory stereo system in my 2003 Audi A8 Quattro?

    A: Yes you can improve your sound in your A8 Quattro by upgrading your speakers and/or adding an amplifier. You may also be able to update the stereo and main display in your 2003 A8 Quattro if there is a dash kit and harness solution available.

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    2003 Audi A8 Quattro

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