After being on back order for awhile, I finally got my Rigid Ignites and installed them last week...... best upgrade to my truck so far!
I found the 1.75” hole saw worked best to cut out the step and I managed to use the supplied stop nuts (although the top one is a PIA) to mount the lights with the help of a friend. I used a 14-16ga blue Posi-Tap into the white wire w/ the green stripe from the trailer harness for power. I did tie both positive wires from the lights together and then used a butt connector to extend the length with an 18ga wire because the wires coming from the right light didn’t have much slack. I then inserted the 18ga wire into the Posi-Tap and tightened the connector.
I did the same with the ground wires, tied them together and extended the length with a butt connector and some 18ga wire with a ring terminal connected to the other end. Without doing this, I wouldn’t be able to reach the factory ground connection with wire from the right light. I then loosened he factory bolt attached to the ground on the frame (this was located just forward of the trailer harness) and attached the ring connector.