thanks again michaelbm, you are a saint. That puts my mind at ease, I also thought about putting a factory navigation in when I saw used ones on the web, I'm guessing you probably had to have the VIN # changed in the unit? I couldn't find a used one locally though. I think though, adding two AUX inputs and her using her android phone for google NAV and internet/MP3 was a good trade off here is the AUX unit I bought Amazon.com: SOUNDGATE SDSGM2 Auxiliary Interface for 2003-2005 GM With Factory XM Satellite Radio: Electronics I have two other question for you this device I bought and have in hand, has a wiring harness with a male and female factory connectors that plugs in between the 12 pin connector at the back of the radio, can you possibly share what the "pinout" of this connector goes to? I have found information on the 24 pin connector but nothing on this 12 pin connector. Second question is where to get this program you mentioned on servicing this car. Thanks in advance, Ray
