There’s no question the certified used-car business is booming. Today, General Motors announced a new-car-like incentive for certified used vehicles: a free three-month trial of XM Satellite Radio.

Apps like Pandora Radio and AOL Radio have brought the wonders of commercial internet radio to every iPod Touch and iPhone. Given their success, it was only a matter of time before the established ...

Tesla has updated its Sirius XM app, and it started releasing three-month free trials for owners to test the improved functionality. With the rise of the podcasts and music streaming, radio has become ...