[buzzinhalfdozen]

OK then you either have a bad ground or you're "feeding" back thru one of your rear lamps or sockets. Remove both rear TS stop lamp bulbs and try again, if it seems OK tryreinstalling1 bulb at a time to try and narrow it down to a particular socket. By removing both rear bulbs you're taking away the "feedback" path. Make sure the socket ground wires at the rear are connected as this could be your "feedback" path.Joe Your rear socket should have 3 wires 1 for tail 1 for TS stop 1 for ground