Audi A4 B6 Stereo Upgrade

[aidanzokia]

Hey guys, I’m trying to upgrade my old stereo system in my Audi A4 B6. I’ve bought the compatible harness for it and it didn’t work. After some research, I saw that it needed to be hooked up to the fuse box.

Is anyone able to make sense of what wire needs connecting to the fuse box? Thanks!

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[Doxquzme Premium Member]

Need more info. What is the year of the auto, what is the stock system, and what equipment are you trying to put in its place would be a good place to start.