i have an xm receiver from another car that i want to install in my girlfriend's '04 chevy colorado. its not the receiver that you velcro to the dash and transmit the signal to the existing stereo deck. this one mounts behind the dash and gets hardwired to the stereo. i'm just wondering if the wire harness from the newer chevy that come equipped with xm is compatible with the xm receiver that i bought at circuit city. the stereo in the colorado has an input for an xm receiver i just want to hook the xm i have to the stock stereo deck in the colorado. any help is greatly appreciated.