Our rig does not have the large single light unit, but the round lights, and I just replaced them with LED units, including the backup lights, so have two red tail, brake, turn signal lights on both sides, and installed clear LED bar lights below on the hitch bar for the backup light. I discovered when doing this, that the color codes of the trailer wiring do not match the standard colors you would normally find, and even though I connected the new lights exactly as the old lights were connected, they had the two hot wires, (running and signal/brake), backward from the factory, and I had to cut and swap the wires to get the new lights working. So, the best way would be to use a test light to prove which wire powers which function, then connect them to the proper light fixture position.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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