Tow harness wiring diagram

I told you you would be blown away.

Now when you start getting into the LED turn signals, you have entered a whole nother realm of stuff to do. You either need an LED flasher or you need to install resistors at the LEDs. If your truck has daytime running lights, your options are a bit limited. You can't buy a LED flasher that works with DRL. There's more to it than that. PM me if you want some more info on LED turn signals.