I'm trying to explore my options for a car PC project and this seems the easiest way to do it.

<center><img src="http://store.mp3car.com/photos/DSH-013-2.jpg"></center><p>Everything you ever want to know about car PC's is available here:
http://www.mp3car.com/vbulletin/

You could use something like this with some mods, but don't know of an actual drop in for any Audi.

Based on info I acquired about the unit depicted above, it'll be too wide/too deep for the B5 double din slot. Will have to hack up the din cage or really mess w/ that ridiculously expensive screen.

Here's a pic of my last update on fabbing a double din LCD using a hacked up Symphony I HU.

<img src="http://pictureposter.audiworld.com/12957/dsc08520.jpg">

No small feat, i'll tell ya.