I must start out by saying that this site is a great idea.
Maybe someone can help me. Just this week I installed a brand new alternator and battery on my 1989 200 quattro turbo. Now for some reason the radio, Anti-lock brakes, and (sometimes) headlight dont turn on.
I checked all the fuses and found only one bad one. I replaced it and the instrument cluster came back on. But the other problems I can't figure out. Would anyone happen to know what I did wrong or what has gone bad?
Also if anyone is familiar with this year, make, and model; do you have any idea why the diagnostics screen on the instrument cluster works sometimes and not others?