i have a 2000 tacoma that i use to tow with..someone stole the tail light, i had a after market wiring harness for my trailer that simply connected in between the harness from the truck and the tail light..when they stole the light they just pulled until i was left with the truck harness only..now both brake light work on the trailer but the turn signals do not...there are only 2 wires that came from the light to the little box that apparently modern vehicles need need for towing harness..i'm thinking one goes to the turn signal and one to the driving light...any ideas