Try this I was there a lot researching all the problems with my 2001 A-6. I sometimes wonder why I bought a 2005... Audi's are love hate relationships for sure. I am hoping my 2005 will be problem free. I REALLY like the way they are built and how they drive.
http://www.audiforums.com/
This was a break away group about a year ago from another Audi Forum.