I have a 2004 buick lesabre and my driverside rear speaker quit working and so i unplugged the wire from it and hooked up another speaker and its not getting any juice to that side in the rear. I hooked up my external speaker to the passenger side rear speaker and it works so i know its not my external speaker.. Does anybody know where the main radio is? or is it in the dash? Its in the trunk on my 99 ford taurus... somebody help!!!!