Stuart....thanks for your patience. The Painless kit I installed has a dedicated wire marked " third brake light " so I think it is OK. Running to the rear of the truck are wires marked " tailights" which work OK. These are the centre bulbs in the light fixture. I also have wires marked " Turn Signal / Brake " for left and right sides. Tail light fixtures have ( 4 ) wires - ground, tail-light, and two marked Brake / Signal. Running to the front, I have combination turn / parking lights. Turn signals don't work / parking lights do ??? Please don't waste a lot of time on this - I will try speaking with Painless - they have been great with the Tech support.
