My backup camera sorta works. Let me explain. I have a NEW 4200 NEX with a Backup camera,
The camera is a license plate CCD camera. The Yellow RCA is plugged into the Brown receptacle on the HU, The camera power is connected, Red to Black/Purple stripe and Grounded to the Black ground wire at the backup light in the light housing. On the HU the purple white wire is connected to the same Black/Purple Stripe wire under the dash from the Wire Harness.
When I start the 2000 Ranger and before the HU boots up, I get the Backup camera to come on and it is transmitting video(while it is in reverse