Well... I'm sure this belongs over in the sights and sound section... but it does'nt seem to have alot of traffic over there... So i'm gonna post it here... I have a 07 1500 SLT with the single CD/Sat AM/FM stereo, A buddy of mine has an 05 2500 Laramie with the GPS and i belive the Infinity Sound system..... MY question is .... are the 2 interchangable? or is there a lot more involved... like wiring and such.....Any help would be nice...Thanks..