yesmkay

This is an old thread but still the best for my problem. I too want to install an aftermarket receiver and hookup aftermarket Sirius but want to utilize the existing factory Sirius antenna mounted to the rear spoiler. Anyone know if this can work? Does anyone have a wiring diagram for the factory sirius for a 2007 SEL? Do the wires from the factory SDARS run to the dash and insert into the factor harness?...or do they terminate somewhere in between?