I have a 2006 300C with the REC radio and the Sirius system and the rear VES system. I have several questions. First can the rear seat passengers listen to some other function on the headsets than the front radio is set to? (Like listen to Sirius on the headsets while the CD's are playing thru the vehicle speakers) Also will the headset work in the front passsenger seat or only in the rear seat? I have some passengers that don't like my selections on Sirius, my CD's, etc. Thanks, regards, Bob.