I had a light kit installed on my 2005 silverado for towing.
Everything works except the brake lights.
The 1999 Endeavor has separate turn/warning lights (yellow) and brake lights (red).
I was told that the 2 light system needed a "converter box" between the coach and the trailer plug. I described a box on the hitch frame that the light wires go into before going to the plug and the mechanic assumed that was the conversion box. Don't know but, again, I have no brake lights on the towed vehicle.
Does anyone know what I need? What I'm looking for? What I need to do?