As XM & Sirius subscribers know these companies have merged. They changed the channel line up a few months ago to merge some Sirius channels to XM and vice versa. At that time I had three XM radios and one Sirius radio subscription. The Sirius radio is in my wife's Expedition. It came factory installed. We paid a full year subscription of Sirius at the time of purchase. *This was prior to the merger of the two companies. When the subscription was about to run out they sent me a bill to continue service for the next year for apprx... read full review »