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Reply to "backup light switch"

The wires at the back up switch are a constant hot and a switched hot. You can confirm this by studying the SOBill diagram posted early in this thread

The red trigger wires do not carry a ground, they carry a +12 V.

It is best to tap into the back up light wiring in the tail light bucket area to make sure you are getting the switched tail light power, not the constant 12 V hot that goes to the switch.

Larry

Last edited by lf-tp2511
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