Reverse light wires

[eljefe]

What two wires do I need to connect to on the trailer bumper harness so my reverse cubes will work when the truck is in reverse? Currently they are on a switch, would like capability with both. Thanks.

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[stimpy433]

If you are talking about the 7 pin plug I believe it’s just the center wire... look at the cover it has a diagram on it. I think you would tap that for “+” and ground the “-“ wire to the frame.

I think you have to do more then that if you want to keep your switch also.... I saw someone posted a diagram in another thread on how to do it.

 

[stimpy433]

@JB1 might be able to help out with the two option wiring....