Tailgate light with 4pin with reverse light

[RockyRidge_Ram2020]

New here, sorry if this is posted somewhere else but I couldn’t find it. I bought a tailgate light bar. I can’t find on hear or a reliable source using google; a wiring diagram for the tail light connector. I’m trying to find the power wire for the reverse lights so the light bar will power on when I go in reverse.

 

[2020Big4x4Horn]

Easiest way would be get someone to sit in it and put in reverse, then prob the wires with a test light.

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[WhiteLaramie2020]

Buy a Curt adapter for your existing 7 pin that way you have a 5 pin connector to plug the 4 pin into behind the bumper and splice the reverse wire to that and not a factory wire.

 

[WhiteLaramie2020]

Curt Adapter here's the part.

 

[Dookie]

4 pin doesn't have reverse, have to tap the 7 pin, or get the Curt adapter and use the 5 pin on it.