Thanks for this video! I purchased the Backoff XP and was surfing thru RU-vid for assistance. This video did the trick. I also purchased the pc8 along with the tail/ brake light splitter - just seemed like a much cleaner install. My OEM 2017 tail/brake light plug has solid green (ground), green with yellow stripe (brakelight) the black with red stripe (tail light). I connected the black on the Eastern Beaver to the black on the BackOff XP. Then the EA purple to the BackOff red, then the EA red wire to the white with red stripe on the BackOff. Must be an updated unit as im getting 4 flashes then solid... them it repeats.