Klaus
You seem to be the expert. Would you please check this link and tell me if this should work in my '03 H2 with the Lux Bose (y-91)? I want to retain the OnStar and mount a remote CD changer. Also, will all the current controls work i.e. steering wheel, rear sound controls, etc? Thanks in advance.
http://www.jpcustoms.com/store/custo...649&cat=&page=