I want to keep my factory deck, but I have a MP3 player & Sat radio I want to hook up. I don't have Bose or Onstar. I have the CD player unit in my car now. I've read a few things that say yes, and another that says only if you have the CD/AUX button. I have the CD/PLAY button. I'm lazy; I don't want to open the dash up and check the rear of the radio to see if it has the input. But I'll do it if I have to. Mainly I don't want to buy the GM9-AUX and then find out I can't use it.