I have been told that the Satellite button on my head unit is just a place holder and does not function without a XM receiver. The dealer quoted me about 750 for labor and parts, but would not tell me the part cost. Does anyone have part #'s for all needed parts for the install and possible wiring diagrams? I have searched the forms and nothing came up. I also want to do a remote entry/keyless push start mod at the same time so any wiring diagrams would be greatly appreciated!