Do you know that from experience about grounding the brown wire? Have you gone aftermarket in your audi? What kind of Audi do you have? and Finally if you have gone aftermarket does the computer that displays the OK when you starts the car and what radio station you're on still work wtih an aftermarket radio? Thank you

could you be alittle more specific on some of your questions?

As far as aftermarket, (sounds like you are talking about audio here) I got a pioneer primier cd deck in front, new speakers all around plus two subs, put in an amp and a 12-disc changer.

I had it done by a local shop. The display does still say "ok" but it no longer says "radio" or "tape". It also still displays warning signals.

Not sure what you mean by the brown wire and the radio station question?

Do you have AIM or ICQ or anything? Because i have alot of questions

I know about the brown radio security wire from looking at the wiring diagrams / schematics. The dash AutoCheck computer dispaly will not display the radio station info like the OEM Blaupunkt radio, but new Blaupunkt models SEEM to have the correct signals (DATA, CLK and ENA) availible on a backside connector. Goto the Bosch / Blaupunkt website, and download an installation manual, look at the connector pin signals. The Blaupunkt installation or operation manuals don't even mention this feature, but my guess is that these signals are active, and can be used.
For what its worth, assuming its not broken, the OEM head units are very good (even has a Diversity FM tuner!), and the best sound system upgrade is to replace the stock speakers and add a power amp and subwoofer. The original head unit has line level outs, which can be used to feed the amps.

like you said, replace the speakers (the standard sound system, each speaker has their own amplifier.. so to add a seperate amp you must get new speakers) add an amp + subs, and then get the Audi Six CD Changer designed for the gamma radio system.

This would probably be the easiest and best way to go. They had to solder wires together to get my head unit working. And I had to redo one of the connections because it came loose and I would lose half of the speakers at times.

I've seen this in 100's but can't find a way to get my 1996 A6 to display the radio station in that dash display.

Maybe that feature was discontinued after the A6 replaced the 100?

...All functions seem to work, I just can't find a setting that displays the radio stations.

I thought maybe this feature was eliminated in 1995 when the A6 replaced the 100?