Just purchased a 06 roadster and the steering wheel audio conrols are in op. The car just has the base factory unit single disc etc., not the bose. Anyone out there every had this problem or have any ideas. Also I think at one time a previous owner may have had a sub woofer in it due to seeing the factory cover in that area loose and wires behind it, which means most likely had a aftermarket unit in and out. Any ideas or input would be very helpful.