So, yesterday I tried to install a new Kenwood deck into my 2006 Audi A3 to replace the 6 disk Symphony radio setup. Unfortunately, after everything was installed, my new audio setup just didn't work. After doing some research, I discovered that the Bose system doesn't work with an aftermarket stereo. Does anyone know why that is?

I would like to keep the Bose subwoofer/amp and all of the speakers that are already in there, if possible. I have looked at a few forums that suggest a CT51-AU01 Bose Active system adapter. Would that allow me to keep the Bose speakers etc. while using a new stereo? Has anyone tried this before?