My dealer wanted $700 to install XM, which I thought was ridiculous. I ended buying an XM module from vaistech.com and a XM tuner from Circuit City. I think it was about $275 total. Anyway, you have to remove the radio which is easier than I thought (with some help and pictures from this forum), but there is no splicing involved. The module plugs into the back of the radio and there are no power connections as it is powered directly from the radio. Works great for me.