When I hooked up my XM receiver, I took out the radio and found the delayed power wire feeding it. I took one of those cigaretter lighter splitters, cut one of the sockets off and tapped it into that power wire and a ground. Then I could just plug my XM lighter power cord into it. It's all stuffed up behind the radio out of the way, just the power wire and antenna wire coming out of the access panel under the steering wheel.