I have the stereo in my Tahoe screwed up....I used to be good at working with car audio, now I don't have the patience or time. I have the 2003 factory Bose audio system with AM/FM and 6 disc CD changer. I tried adding an "aux" out to connect ipod, mp3, etc. Can't get it to work, and worse I now have it where my CD changer won't work either. HELP!