Hey guys! I have an 01.5 S4 6speed. I had Best Buy (Worst Buy) TRY to install an after market XM kit last year. I am on my 4th factory radio since then. They keep shorting out. Well now I've figured out that I can just unplug everything completely from the radio, take the fuse out of the fuse panel and reinstall everything in reverse order. But as you can imagine it's a pain in the **** to do for every time I drive. It will stay on while I drive but somewhere between shutting the car off, locking it, unlocking it and restarting it is when it decides to stop working again. I had Best Buy unplug all of their Hack Job work but it keeps doing this. I don't see any exposed wires but I'm wondering now if maybe it is a relay or something because the fuses aren't blowing out. Any ideas Audi Guru's???? If I think of any other pertinent info, I will add.....

 

I would make best buy fix it. There were the ones who screwed it up in the first place make them fix it! Problem solved.

 

My 98 A4 has a similar issue, the A/C, radio and side mirrors are all out, changed the fuses which were not blown and everything only came on once and never again. P.S. Everything electronically worked fine until i brought the car to Audi to replace a multi-function switch, could they have pinched a wire somewhere while doing this.