I'm putting a 92 Olds Cutlass back together and after dropping a motor I am stuck at the door locks. Using the driver side button with the doors locked it will raise the driver side lock, not the passengers. The passengers won't do anything. When the doors are unlocked neither switch with lock the doors. So far I have checked both motors and both will unlock their doors but not each others. The fuse is good. Someone told me that the locks are controlled by some switch located behind the trim were the asshtrays in the backseat are. Any help will be appreciated. T.I.V.