I checked on the archives and it looks like the Panasonic fits 98+ Concert radios. However, I already own an Alpine 601 changer, has anyone figured out a way to install it and are there any problems?<p>"KJ" 99 1.8TQM

I have the same concern...I have the Alpine 600 changer.like to keep it if I can! Let us know!<br>

Your Alpine will not work with your existing factory stereo ... unless it is one of those FM modulator type changers. Nevertheless, you will not be able to directly control it by the factory stereo cd control buttons. For that you must buy the Panasonic DP601 (plus adapter) or the factory Audi unit. Call Clair Parts -- they will have an answer for you.<p>Good luck.