Has anyone wired their own backup camera?
The back of the OEM head unit has three wires that the adapter harness plugs into. Some of the camera harnesses employ just one wire and others use all three. The camera itself I think just has two wires on a coaxial cable with coaxial connector. The shield is the ground.
I think what we have here is a signal wire, a ground wire and a shield (the "third" wire).
The "shield" is usually tied to ground but I wonder if others are just wiring up the 2 wires with success.
How are other folks handling the 2 versus 3 wire thing?
Are you leaving the ground and the shield disconnected at the back of the rado or splicing them together at some point.
I suspect that the three wire harness just tie the ground and shield together at the coaxial connector you plug into the camera's connector.