Ok so maybe I was not too clear. It happens. There are 2 ways to hook up turn signal lights. Both are addressed here and with a bit of patient study the diagrams will make sense. Love the trailer pics by the way. It will get clearer as he works his way through it. "bartamos" has covered it rather well. Try tracing the function of each wire and forget the color for a bit. I bet it all works with no real trouble. Fuse each wire for safety and try it. Seven wires= integrated. 5 wires= separate. 5 wire will have one to each light. Left front, Left rear, Right front, and Right rear. One left over for power. Inside will be a switch, and a flasher. Power will go through the flasher to the switch and then to a pair of wires. Left or right. Nothing to the brake light switch at all. That and what has been listed by bartamos will cover it.
