I have an 08 Eddie Bauer with Rear Entertainment System. I generally use Bluetooth to listen to my tunes through sync and occasionally the radio. Recently it will only play from the front drivers door speaker. Sometimes if I turn the ignition off, open the door and then start up again it will work with all 4 speakers but doesn't work all the time. Do the smart people on here have any ideas? FYI I do have a Viper remote start and aftermarket speakers installed. Speakers have been installed for more than 4 years and the remote starter was installed in January. It has been working fine up until recently.