[TheBoogieman]

I had an idea for back up lights for getting the "cheaper" round LED tail lights without back up lights.My Warn bumper has the W carved out.A good place to mount back up lights(inside the bumper).My question is, do I just wire them to the original back up lights and do I need some flasher relay I keep reading about to make the lights work properly?Thanks

[RYANSTULC]

If you use LED backups (good luck finding them), I don't think you'd need a relay. If you use regular 12V halogen style lights, you will need a relay.
I also have the Warn rear bumper, and had considered mounting some small
back-ups inside the "W". But I couldn't find an LED backup light that small.
I ended up using a small set of 50W lights, ran through a relay.
Again I don't think you'd need a relay with LED's, because they draw very little power.

[KennyTJ]

If you run the wires for the original factory back-up lights to the "New" mini lights in the bumper you don't need to change anything and they will come on when the tranny is shifted into rev.

I have a WARN front bumper and have the orange side-marker lights behind the W and they wired to the factory parking lights.