The very best thing to do is to have the wiring schematic for your automobile. Depending on the kind of trailer, installing new wiring typically requires just a few essential tools and a great wiring kit. There’s a lot wiring that you’ve got to tie into your truck’s wiring harness, but it’s simpler to do than it seems.
Though some vehicles might not be equipped with a trailer wiring connector, they could have a distinctive socket specifically intended for hooking up wiring, supplied by the car manufacturer. If your automobile isn’t equipped with a factory-installed connector, customized wiring is the best solution. For example, it may have a 7-way RV blade, while your trailer has a simple 4-way flat. Even if it is not equipped with a connector, it may have a wiring plug located in the rear. Or, if you’ve purchased a new vehicle, you might locate the harness necessary to install the connector within the glovebox.
If you’ve got 4 connectors, it is a pretty safe bet you’ve got domestic type wiring. Now you know the forms of connectors, it’s necessary for you to figure out what you have on your vehicle to create the connection to a trailer. A customized wiring connector employs a single plug to plug into the exceptional factory socket and offer a typical trailer wiring connector.
The rest of The wires become installed underneath. The white wire has to be connected to the trailer as a way to ground and power the lights. With 4 wire system there’s no blue wire.