The buzz behind the satellite radio airwaves is that Sirius XM Radio (SIRI +1.6%) star...

|About: Sirius XM Holdings Inc. (SIRI)|By:, SA News Editor

The buzz behind the satellite radio airwaves is that Sirius XM Radio (SIRI +1.6%) star personality Howard Stern could leave the company with longtime supporter Mel Karmazin easing out of the CEO's office. Will Pandora (P -5.5%) try to shake up its lineup by making a play for the "King of All Media?"