Ok, something went pretty wrong here. My appologies if you understood "if you did your homework" referring to you. What I ment to say was that someone is being helped here if he did his homework and used the search and read some of the messages before posting the same question which got already answered again and again.
The enthusiasts from the Yahoo group were who helped me getting started, together with similar interested people on
http://navi-forum.net,
http://www.a4-freunde.com/ and
http://www.audi4ever.at. Without those people, I would still be looking for answers.
I don't know which bad expiriences you made with people on this forum. All I can say is that several here helped me answering questions I had and I have helped some others to get started. And if I can will continue to contribute questions and answers and more.
Again, my appologies if I have worded my previous message wrong. If I would not concur with someone, I would discuss this in a private email but not in a public forum.
Dirk