Shares of Sirius XM Radio (SIRI, LMCA) turn lower, now down 2.3%, as more details on the iTunes...

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

Shares of Sirius XM Radio (SIRI, LMCA) turn lower, now down 2.3%, as more details on the iTunes radio are unveiled. The Apple service will be integrated into some new cars which could cut into subscriptions totals for Sirius.