Wiring Diagram For 4 Pin Round Trailer Plug. Wiring your four-pin trailer can be a challenge when you first do it, but it's a simple do-it-yourself task. It gets complicated when you have trailers with more cables, and in this case, you need an adapter to make the connections.
I had no choice but to install the wiring Referring to a wiring diagram for a trailer comes in handy during installation.
The left and right turn signal lights should each have a different color.
Wiring your four-pin trailer can be a challenge when you first do it, but it's a simple do-it-yourself task. It gets complicated when you have trailers with more cables, and in this case, you need an adapter to make the connections. Wiring Diagram for black, yellow, green, blue PWM fans.