Brake lights not working nor is the 3rd (center) light. fuse is ok. bulbs appear ok although 1 looks a bit burnt but filament appears intact, however even if 1 bulb is bad wouldn't other side work? switch is ok as just tried a new one and still didn't work. can hear relay click with current switch as well as original. recently had transmission rebuilt. is there some type of ground wire that could have been disconnected when trans rebuilt? all other lights and horn work. any suggestions??? THANKS!!!