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2003 Volkswagen Passat Stereo Wiring Guide


Question: Where can I find a 2003 Volkswagen Passat radio wiring diagram? How I find a 2003 Volkswagen Passat car stereo wiring diagram?

Whether you’re an expert Volkswagen Passat mobile electronics installer, Volkswagen Passat fanatic, or a novice Volkswagen Passat enthusiast, an Volkswagen Passat car stereo wiring diagram is a must. One of the most time consuming tasks with installing a car radio is identifying the correct wires. If you want to know how to change your radio in your 2003 Volkswagen Passat or figure our why car radio stopped working, a 2003 Volkswagen Passat radio wiring diagram can save you a lot of time. Knowing what every wire does in your 2003 Volkswagen Passat radio wire harness takes the guess work out of changing your car radio or fixing your car stereo. Our 2003 Volkswagen Passat radio wiring diagram shows you all the 2003 Volkswagen Passat radio wire colors and what they do. Use our 2003 Volkswagen Passat stereo wiring guide to install a new car radio.

2003 Volkswagen Passat Car Radio Wiring Diagram

Knowing your 2003 Volkswagen Passat radio wire colors makes it easy to change your car stereo. Our 2003 Volkswagen Passat radio wiring guide shows you how to connect car radio wires and helps you when your car radio wires not working. It also shows you the car radio wire to battery, which wire is positive, what is car radio illumination wire and more.

Application Radio Wire Color
Car Radio Battery Wire (Constant Power 12v+) Red/Blue
Car Radio Accessory Wire (Switched Power 12v+) Run a wire to the fuse box or ignition switch harness for switched power.
Car Radio Ground Wire Brown
arrow Use a Car Radio Wire Harness and Car Radio Dash Kit for an Easy Install!
Car Radio Illumination Wire Gray/Blue
Car Stereo Dimmer Wire N/A
Car Radio Antenna Trigger Wire N/A
Car Radio Amp Turn-On Trigger Wire N/A
Car Radio Amp Mute Wire N/A
Car Radio Amplifier Location Under the rear deck.
arrow Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio.

2003 Volkswagen Passat Speaker Wiring Guide

Knowing your 2003 Volkswagen Passat speaker wire colors makes it super easy to replace your car stereo. Our 2003 Volkswagen Passat speaker wire guide shows you how to connect car speaker wires and helps you when your car speaker wire not working. It also shows you what car speaker wire to use, which car speaker wire is positive and more. Find your 2003 Volkswagen Passat speaker wire below!

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!
Left Front Tweeter Positive Wire (+) N/A
Left Front Tweeter Negative Wire (-) N/A
Right Front Tweeter Positive Wire (+) N/A
Right Front Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Left Front Speaker Positive Wire (+) Red/Green
Left Front Speaker Negative Wire (-) Brown/Green
Right Front Speaker Positive Wire (+) Red
Right Front Speaker Negative Wire (-) Brown/Red
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Left Rear Tweeter Positive Wire (+) N/A
Left Rear Tweeter Negative Wire (-) N/A
Right Rear Tweeter Positive Wire (+) N/A
Right Rear Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Left Rear Speaker Positive Wire (+) Blue/White
Left Rear Speaker Negative Wire (-) Brown/White
Right Rear Speaker Positive Wire (+) Blue
Right Rear Speaker Negative Wire (-) Brown/Blue
arrow Upgrade your Subwoofer for deeper lows!
Subwoofer Positive Wire (+) N/A
Subwoofer Negative Wire (-) N/A

2003 Volkswagen Passat Speaker Size and Location

Knowing your 2003 Volkswagen Passat speaker sizes makes it simple to install new car speakers. Our 2003 Volkswagen Passat speaker size guide shows you the exact measurements and what speaker fits in your car. It also shows you where your 2003 Volkswagen Passat speakers are located. Find your 2003 Volkswagen Passat speaker size and speaker location below!

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 3″ 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 Speaker Size 6.5″ Speakers
Rear Speaker Depth 3″ 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

Have any questions about your 2003 Volkswagen Passat radio installation? Please feel free to post it at the bottom of this page. We will do our best to find you the answer you are looking for. Or hopefully someone in the Modified Life community will respond with the car stereo information you are looking for.

Contribute

Want to help the Modified Life community by contributing 2003 Volkswagen Passat stereo wire diagram information? Feel free to post it at the bottom of this page. Thank you in advance for your contribution!

Conclusion

Feel free to use any 2003 Volkswagen Passat radio wire diagram that is listed here but keep in mind that all information here is provided as is without any warranty of any kind. Use of this 2003 Volkswagen Passat stereo wiring guide is at your own risk. Always verify all radio wire, stereo wire colors and wiring information before applying it to your 2003 Volkswagen Passat.

8 thoughts on “2003 Volkswagen Passat Stereo Wiring Guide”

  1. Adria, your 2003 Volkswagen Passat Wagon does not have an aux input jack. We suggest you purchase an automotive auxiliary input adapter. This adapter will allow you to input any Apple iPod, mp3 player or portable music player into your factory radio. This is the easiest and most cost effective way to add an audio input into your factory stereo directly rather than over the air. Here is the adapter you will need:

    Auxiliary Input Adapter for 2003 Volkswagen Passat Wagon

    If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 2003 Volkswagen Passat Wagon aux input adapter installation.

  2. Hi, I have a 2003 volkswagen passat and installed a after market stereo and was wondering if it is possible to hook up the factory amp in the car. anyone?

  3. Hey I was looking to install subs and an amp into my car with the stock radio. I have an output adapter for my RCA cables to hook up to the amp, but I’m unsure of how to wire it in. I have located the rear speaker wiring and was wondering if i should disconnect these wires and use those to wire to my output converter, however, I am unsure if this is the correct way to do this. thanks

  4. Shane, it sounds like you haven’t properly wired up your accessory switched power source. The factory stereo wire harness does not provide a accessory switched power source. Run a wire to the fuse box and find a switched power source that turns on and off with your key. Use this wire to turn your radio on and off. Hope this helps. Good luck with your 2003 Volkswagen Passat radio installation.

  5. Hi, i want to change the radio in my 2003 Passat. but the radio i put in, does not automatically turn on/off with the key like the original one. is it possible to change it so it turns on/off with the key? thanks, Shane

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