Sorry, been a hell of a day so far. I didn't get a chance to even look at it today, but I did do some googling and what I've found is that white wire is indeed acting as a trigger along with the blue. The rigid harness is specifically set up to have the reverse tied in and utilize their 3 way switch for on/off/auto. I'm not sure how to go forward. I figured I'd take a look at how the relay from rigid is setup on my 10" light bar and then compare it to the relay for these lights. Maybe figure out something there?