MODIFIEDLIFE

2009 Audi A3 Radio Wire Harness Diagram


Question: Where can I find a 2009 Audi A3 radio wiring diagram? What are the 2009 Audi A3 radio wiring harness colors?

If you’re looking to change the radio in your 2009 Audi A3 or troubleshoot why your car radio stopped working, we’re here to help!

Our comprehensive 2009 Audi A3 radio wiring diagram shows you all the radio wire harness colors, car speaker wiring colors and car speaker sizes. Use our 2009 Audi A3 stereo wiring guide to help you with your car radio and installation needs.

2009 Audi A3 Radio Wiring Diagram

This 2009 Audi A3 radio wiring chart shows you all the 2009 Audi A3 radio wire colors and their functions. Utilize this guide to help you with a car radio install or help with a car radio troubleshoot. If you don’t see the car radio wiring information you’re looking for, please feel free to ask your question at the bottom of this page.

Application Radio Wire Color
Car Radio Battery Wire (Constant Power 12v+) Pin #16 in 20-Pin Plug (Top Plug on Radio)
Car Radio Accessory Wire (Switched Power 12v+) Pin #17 in 20-Pin Plug (Top Plug on Radio)
Car Radio Ground Wire Chassis
arrow Use a Car Radio Wiring Harness and Car Radio Dash Kit for an Easy Install!
Car Radio Illumination Wire N/A
Car Stereo Dimmer Wire N/A
Car Radio Antenna Trigger Wire N/A
Car Radio Speaker Amplifier Turn-On Trigger Wire N/A
Car Radio Subwoofer Amp Turn-On Trigger Wire N/A
Car Radio Mute Wire N/A
Car Radio Amplifier Location N/A
arrow Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio.

2009 Audi A3 Speaker Wiring Guide

This 2009 Audi A3 speaker wiring chart shows you every speaker wire color and the speaker wire location. Use this 2009 Audi A3 speaker wiring guide to help you with a speaker replacement or speaker upgrade. If the car speaker wiring information you’re searching for is not listed, please don’t hesitate to ask for it at the bottom of this page.

Application Speaker Wire Color
Front Center Speaker Positive Wire (+) N/A
Front Center Speaker Negative Wire (-) N/A
arrow Upgrade your Center Speakers for awesome sound!
Front Left Tweeter Positive Wire (+) N/A
Front Left Tweeter Negative Wire (-) N/A
Front Right Tweeter Positive Wire (+) N/A
Front Right Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Front Left Speaker Positive Wire (+) Pin #5 in 8-Pin Plug (Middle Plug on Radio)
Front Left Speaker Negative Wire (-) Pin #6 in 8-Pin Plug (Middle Plug on Radio)
Front Right Speaker Positive Wire (+) Pin #3 in 8-Pin Plug (Middle Plug on Radio)
Front Right Speaker Negative Wire (-) Pin #4 in 8-Pin Plug (Middle Plug on Radio)
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Left Tweeter Positive Wire (+) N/A
Rear Left Tweeter Negative Wire (-) N/A
Rear Right Tweeter Positive Wire (+) N/A
Rear Right Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Rear Left Speaker Positive Wire (+) Pin #7 in 8-Pin Plug (Middle Plug on Radio)
Rear Left Speaker Negative Wire (-) Pin #8 in 8-Pin Plug (Middle Plug on Radio)
Rear Right Speaker Positive Wire (+) Pin #1 in 8-Pin Plug (Middle Plug on Radio)
Rear Right Speaker Negative Wire (-) Pin #2 in 8-Pin Plug (Middle Plug on Radio)
arrow Upgrade your Subwoofer for deeper lows!
Subwoofer Positive Wire (+) N/A
Subwoofer Negative Wire (-) N/A

2009 Audi A3 Speaker Sizes and Location

This 2009 Audi A3 speaker size chart shows your speaker measurements and speaker locations. Use this chart to see what speaker fits in your 2009 Audi A3.

Application Speaker Size and Location
Front Center Speaker Size N/A
Front Center Speaker Depth N/A
Front Center Speaker Location N/A
arrow Upgrade your Center Speakers for awesome sound!
Front Tweeter Size N/A
Front Tweeter Depth N/A
Front Tweeter Location N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Front Speaker Size 6.5″ Speakers
Front Speaker Depth 2.5″ Depth
Front Speaker Location Front Doors
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Tweeter Size N/A
Rear Tweeter Depth N/A
Rear Tweeter Location N/A
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Speakers Size 6.5″ Speakers
Rear Speaker Depth 2″ Depth
Rear Speaker Location Rear Deck
arrow Upgrade your Subwoofer for deeper lows!
Car Subwoofer Speaker Size N/A
Car Subwoofer Speaker Depth N/A
Car Subwoofer Speaker Location N/A

Questions and Answers

If you have any questions about your 2009 Audi A3 radio installation, please don’t hesitate to post them at the bottom of this page. We’re committed to finding the answers you need, and members of the Modified Life community may also provide valuable insights into the car stereo information you’re looking for. Don’t hesitate to ask your car audio question; it could benefit others seeking the same answers!

Contribute

Do you want to contribute 2009 Audi A3 stereo wire diagram information to benefit the Modified Life community? Feel free to share your insights by posting at the bottom of this page. We will gather any additional information presented below by our community, verify it, and incorporate it into the car radio wiring guide above for easy reference. We are consistently adding new information to improve and update this car stereo wiring guide as it becomes available. We appreciate your contribution in advance!

Leave a Comment

Your email address will not be published. Required fields are marked *