And possibly take out control modules in the process. Not a good idea.
I wouldn't say the alternator is bad yet. It might be bad but I wouldn't bet on it. The first thing to check is the battery and go from there. Alternators in VW's and Audi's don't go out all that often. BTW, I was a VW/Audi tech for 25 years before I jumped to the other side of the parts counter about 3 years ago.
As for the picture look for something like this.
I couldn't find a good picture on the web so this is from my wifes 03 Passat.
EDIT: To add what mikecdm said VW and Audi factory batteries are drop shipped from Interstate Batteries.
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