4 Prong Trailer Plug Wiring. There should be a common color for both the tail lights. On a four prong plug one prong connects to the right turn signal one to the left and one to the tail lights.
Curt 58060 trailer side 4 pin round wiring harness plug. Get it as soon as tue dec 8. Installing the 4 pin trailer wires you must check the trailer manual to see if the wiring is correct but normally the white wire is called the ground wire while the brown wire is used for tail lights.
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Designed to work with the existing electrical system. There should be a common color for both the tail lights. Please refer to the linked photo. If your vehicle does not have a 4 way connector it s usually pretty simple to add one.
