Wiring Trailer Lights with a 7-Way Plug (It's Easier Than ...
A 7-way plug connects your trailer and tow vehicle and provides the required lights, turn signals, brake power, battery hot lead, reverse lights, and ground. Most of us aren't electricians, but that doesn't mean wiring a trailer or replacing corroded wiring is beyond us. We'll walk you through the wiring process--it's easier than you think!
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