Cool 7 Pin Plug Wiring: Wiring Guide For 7 Pin Plugs References. Red = left turn signal/stop. Ground (white wire) pin 4:

Black = 12v battery connector. Right turn signal and brake lights. Left turn signal and brake lights.
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Cool 7 Pin Plug Wiring: Wiring Guide For 7 Pin Plugs References. Red = left turn signal/stop. Ground (white wire) pin 4:

Black = 12v battery connector. Right turn signal and brake lights. Left turn signal and brake lights.
Red = left turn signal/stop. Reverse lights (black wire) pin 3: Left turn signal and brake lights.
Left turn signal and brake lights. Black = 12v battery connector. Right turn signal and brake lights.
Ground (white wire) pin 4: Right turn signal and brake lights.
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