While it may be "cleaner" to cut out all the extra harness wires, etc, I didn't. I may want to add other option in future, so I left my entire harness intact and just wrapped it up and tucked it out of the way. Wrapped the hard ends in foam to prevent rattles. It seems backwards when you do it this way, because the video cable is in the other end of the harness that just dangles, but it's all tied together and works just fine.
I convinced the dealer to reflash it for free, since I bought the Jeep from them (used); so I'm into a factory backup camera for under $40!!
2016 JKUR on 35s
History- 90 XJ, 98 TJ, 98 ZJ