Installing aftermarket stereo?

[Ron Bauer <ronbauer@aa.net>]

Howdy all,

I just purchased a '94 90CS quattro after owning an '85 4000S and an '88 90 
quattro.

The car comes with keyless entry and the factory alarm works with the 
factory stereo so that the buzzer sounds when the stereo is left on, as 
well as the alarm being activated if the stereo is "stolen."

I am intending to put my old CD player in the car and in talking to a 
couple of car stereo places, was first told that there isn't an aftermarket 
adapter for the factory harness which I'm a little bummed about but can 
deal with.  The second thing I was told was a bit more "alarming."  (Sorry 
couldn't resist that.)  I was told that if I removed the factory stereo 
from the car that my alarm and keyless entry wouldn't work.

Does anyone out there have any personal experience with replacing the 
stereo on one of these cars?  Anything I need to keep in mind when 
hardwiring the new stereo in?

TIA,

Ron Bauer
ronbauer@aa.net