How To Audi TT Stereo Wiring Diagram

How To Audi TT Stereo Wiring Diagram


When you need to upgrade your Audi TT stereo or speakers, you have one of two choices. You can take it in to a professional stereo shop, or do the wiring yourself. Contrary to popular belief, installing your Audi TT radio or wiring up your own Audi speakers isn’t difficult. Whether you are doing the Audi TT stereo wiring yourself, or upgrading Audi TT speakers you can use this guide.

Armed with this Audi TT stereo wiring guide, you’ll save money and time. This stereo wiring schematic eliminates the need to track down wires or colors. Taking the guesswork out of stereo wiring, this Audi TT stereo wiring tutorial will cover the year ranges of 2000-2006 for the TT.

MK1 2000-2006 Audi TT Stereo Wiring diagram

Whether you are installing a new Audi TT stereo or putting in a factory one, these Audi TT stereo wiring values can help. Don’t waste time tracking down stereo power wires, or grounds. You can easily and quickly upgrade the factory Audi TT stereo with our wiring schematic.

Most factory Audi TT stereos are single DIN design. However depending on your replacement stereo, you may need a stereo install kit. These hardware kits come with everything you need for install. Mounting brackets and even front bezel kits give you the best way to install your Audi TT radio.

Audi TT Stereo Wiring

Audi TT Stereo Constant 12V+ Wire: Red/White
Audi TT Radio Ignition Switched 12V+ Wire: Black/Blue
Audi Radio Ground Wire: Brown
TT Radio Illumination Dimmer Wire: Gray/Blue

Upgrading your speakers in your Audi TT? Not to worry we’ve got you covered when it comes to the speaker wire colors. Whether you are installing an Audi TT amp or just looking to get better sound from your speakers, this guide can help.

The front Audi TT speakers are easily upgraded, although getting to them can be difficult. If you are looking to upgrade to larger speakers, you will require modification in order to make them fit. Never mix up the speaker polarity, as that could lead to distorted sound from your speakers.

Left Front Speaker Wire (+): Blue/White
Left Front Speaker Wire (-): Brown/White
Right Front Speaker Wire (+): Red
Right Front Speaker Wire (-): Brown/Red

Most Audi TT speakers can be installed by simply removing your factory ones. You can also connect your new speakers by using this Audi TT stereo wiring diagram.

Left Rear Speaker Wire (+): Brown/White
Left Rear Speaker Wire (-): Blue/White
Right Rear Speaker Wire (+): Brown/Red
Right Rear Speaker Wire (-): Red

Have any questions regarding our Audi TT stereo wiring schematic? Leave us a comment below and let us know!


  1. Hi
    Fitting new rear speakers to my 2001 Audi TT and found the left connector is an 8 pin going into some sort of circuit board and the right is just 2 pins going straight to the speaker terminals. If I disconnect the left 8 pin the right stops working. What’s this all about? Help needed please!

    • Hi Jo, thanks for reading my Audi stereo wiring guide.

      You are either describing the body control unit or the amplifier. I would recommend tracing back your factory Audi TT speaker wires from the head unit.

      Hope that helps!


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