XM Satellite Radio Beams First Signal to Delphi In a show of things soon to come, Delphi Automotive Systems (NYSE: DPH - news) successfully demonstrated one of the first mobile Satellite Digital Audio Receiver Service (SDARS) receiving systems recently with a connection to a digital radio signal from XM Satellite Radio. The XM digital music signal was successfully received by an open-air SDARS remote Delphi receiver and played through a Delphi Delco Electronics Systems premium radio.