Just finished install, built my own parts kit at considerable savings too. Used a Deutsch to H11 plug kit from amazon and with a minor trim off bottom tab works with stock fog light harness. Polarity is correct and comes right on, no flickering. Perfect. But install was pain in ass, because removing bumper was not an option due to heavy rigid led bar mounted, and with bushwacker fender flares installed. WARNING passerger side has a cover that needs to be removed. Had to peel back fender liner without cracking it. Driver side took 15min. Passenger side took 2hrs with not trying to break anything. Added heavy tape to tab on rigid mount, during a test fit it wobbled a little and tape fixed that. Once everything in place all bolts tightened. Need to wait for it to get dark and see what needs to be adjusted up or down.