I would like to make it possible for my daughter to be able to connect/stream music from her iPhone onto the factory Bose stereo in her 2005 GMC Envoy (with steering wheel controls and On-Star) and need some help. Awhile back I bought the TranzIt USB (IS32) and tried to install it per the instructions. However, it has never really worked properly, When I hook a phone up to it and play music, the musical part of a song plays but no vocals (sounds quality isn't very good either). Also, when I turn off the Tranzlt, reception on regular FM radio stations isn't nearly as good as it was before the Tranzlt was installed. I tried contacting iSimple but they weren't much help. Any ideas on what the problem might be? Is there another inexpensive way to give her this ability? Thanks in advance!