Multi function rear auxiliary lights.

[chadc]

Hello all,
I have a 21 ram. The aftermarket rear bumper has auxiliary leds, they are currently controlled with a switch in the cab. I would also like them controlled with the factory reverse lights.
I was going to pick up the signal from the reverse lights and add it to pin 85 on the auxiliary light relay(along with the manual switch signal). My concern is if I turn the leds on manually voltage would back feed through the vehicles wiring. Is this a valid concern or not?
I've searched the forums and haven't found anything answering the question.
Thanks,
Chad

 

[Dougs 2021 Ram]

i did mine this way . this guys did a nice video

 

[Jako]

Hello all,
I have a 21 ram. The aftermarket rear bumper has auxiliary leds, they are currently controlled with a switch in the cab. I would also like them controlled with the factory reverse lights.
I was going to pick up the signal from the reverse lights and add it to pin 85 on the auxiliary light relay(along with the manual switch signal). My concern is if I turn the leds on manually voltage would back feed through the vehicles wiring. Is this a valid concern or not?
I've searched the forums and haven't found anything answering the question.
Thanks,
Chad

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