I Have a 2008 Cadillac sts with the Bose 15 speaker option the problem is my front door woofers left and right along with the rear sub aren't functioning could it be a bad amp all other speaker are operating fine? any help would be appreciated.
10-07-12, 12:05 AM
These are all powered speakers. Have you checked fuses?
In the left rear fuse block, there is a 15A fuse for the REAR SHLF SPKR. Also in the left rear fuse block is the DDM fuse (Driver Door Module). In the right rear fuse block, you'll find a PDM (Passenger Door Module) fuse. These supply power to the respective speakers.
Looking at things now, it's unlikely a power problem (at least for the door speakers). If the DDM and/or PDM fuses were blown, all your other door functions wouldn't work either. Still worth checking as a starting point though.