Do you have the adapter that converts the signal.

The monsoon and aftermarket decks run different ohms. A
PAC OEM-1 or Scosche FA1-1A-GM2 would be a good investment. Think they are 15 bucks. Otherwise you'll probably get a hiss or the bose will distort sooner.

Doing the after market headunit to stock bose system is a pain in the ass... i'd wait until u get speakers with it too.. much less head ache.

http://web.camaross.com/forums/showt...hlight=ADDGM21