How To Wire 4 Way Trailer Lights. Current trailer wiring systems can come in several varieties. Measure how many feet across to the other marker light and cut off a spare piece of brown wire to If you wired everything correctly, the trailer lights should be fully functional.
Some trailer wiring kits include the connectors and supplies needed for installation, but some don't. So here I have an older trailer which needed some work, along with re-wiring the lights. Four-way flat plugs provide connections for turn signals and taillight or side marker lights.
Some trailer wiring kits include the connectors and supplies needed for installation, but some don't.
To legally tow a trailer, vehicles must be wired for trailer lights.
If the trailer lights are old. Chas, how are you wiring the lights? Now I have to wire the lights.