4 Wire Trailer Plug With 5 Wires. The brake and running wires would "T" off & run to both left & right. One that won't require extra cable purchases and all should go for The exact wiring will depend on your car model.
If the trailer plug wiring on your vehicle or trailer is damaged or not working correctly, you can replace the connector with a CURT splice-in plug or socket.
Resources: safe electric wiring Horsepower rating of plugs and receptacles Always connect ground wire.
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If you're towing just for the day and don't ever plan to tow again, you can pick up some adapters that replace the We found an adapter at the auto parts store that makes this plug-and-play. In my case I googled it. Does exactly what it's supposed to do.