What I found was helpful was actually searching RU-vid for someone with my same vehicle model to see how a backup camera is wired into the taillights. (Ford F-250 backup camera install) Made the install of this unit a lot easier for me.
"....like my way...." LOL (instead of saying "like this") Funny at first, but annoying after a while - but not as annoying as the playback speed getting all wonky.
Installed 1 - 11/20 . Do test it b4 install , will save 2nd guesses . Put ours on Ford Extended E350 . Cord ( 23.5ft ) reached Rear Driver door & mounted it a housing we built . Cable was Short anyway we tried to get Passenger License plate , also block plate light . Runs Fine .
I bought the second one for my friend’s car. Just wondering why it doesn’t work if I connect it to the reverse light. I did the same way from my truck which works fine.tried getting the output voltage from the reverse light which is 12v.