Does anyone know if you can add xm radio to the factory stereo on my 2003 H2? I don't want one of those after market displays.
I have the bose 6 cd changer in-dash unit (XM ready?).
I have bought a xm tuner and modulator and antenna from a salvaged gmc and I don't know if it will work. Does this just plug into my stereo or is it locked to the original vehicle?
If anyone can help I will very much appreciate it.

THANKS AGAIN