When I installed the XM Radio, I ran a cig lighter spliter and layed it in my glove box. I just used a 3M splice connector on the back of the OEM cig lighter. I have an extra outlet, the cell phones and the cigarette lighter to run the Garmin. I also left the the XM radio in the glove box, we rarely change channels. It looks a neat and clean with the exception of the XM antenna laying on the dash nobody knows it's there.