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| Does the trailer have any wires? If not you can get some wire and lights and do it your self. Remember that semi trailers use two light per side instead of one. One light will glow with brakes while another will blink with signal. Both should glow with tail. My flatbed and lowboy trailers have two and my hopper has three. One yellow in the middle for signal. You wire it the same but instead of yellow and brown to one light you wire it brown to both and yellow to just one. Other side would be brown to both and green to one. Brown would go to all markers also. | |
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trailer wiring
