The majority of light-duty trailers are going to use 4-pin wiring. This special harness is used with most utility and boat trailers. With the right connection, the running lights, brake lights, and turn signals will all work properly. The other pin is used for the ground wire. To help you get started, I have some tips for installing 4-pin trailer wiring.To get the wiring installed, you must match up the colors and connect the ground wire to the frame. You will need to perform some installation steps from the trailer side and others from the vehicle side. Don’t forget to test the connection before you hit the road.I look closer at what the wiring looks like. This guide also provides simple installation tips to get you moving.4-Way Trailing Wiring Color CodesBefore you get started on the installation, you must first understand what every color means. While the codes might vary slightly between the manufacturers, most of them use the same generic options. However, you should always check...
