Buy A Used GM Car, Get XM Radio Free...For Three Months

According to a joint release from the General and XM, we're told GM's offering a "satellite radio trial program" for their certified used vehicles program. What it means is any GM used vehicle sold as "certified" and equipped with an XM Radio will get three months of XM service for free and they'll waive any and all… » 5/23/07 2:15pm 5/23/07 2:15pm