there are plugs to each fender marker light. should be three wires to each. one is white with black trace, one is green with black trace, and one is green. the black wire from your ARB harness should go to the white with black trace. the red wire will either go to the green or green with black. i need to look to confirm this. my truck is strange... it had plugs on it already for extra indicator lights so i didn't look at which one the red was connected to.
i like to tap on the body side of the wiring harness for things like this since there is a connector to the accessory. keeps things simple. you need to tap into the wires on the body side of the corner marker connector. the light kit comes with vampire taps... use at your risk. i bloody well despise those, and will always prefer a good splice over that hack.
is your truck 12v or 24v? if you have a 24v truck you will need to swap the bulbs out for 24's. the 12's will work. for a little bit. and be really bright.
--r
i like to tap on the body side of the wiring harness for things like this since there is a connector to the accessory. keeps things simple. you need to tap into the wires on the body side of the corner marker connector. the light kit comes with vampire taps... use at your risk. i bloody well despise those, and will always prefer a good splice over that hack.
is your truck 12v or 24v? if you have a 24v truck you will need to swap the bulbs out for 24's. the 12's will work. for a little bit. and be really bright.
--r