Had my wolfbox G900pro installed today. The standard wire was long enough without needing an extension. But only with several inches to spare. It had it done professionally rather than risk breaking something myself. It was piggybacked onto the OBD to give continuous live feed. It didn't need the panel removing but went into the headlining across to the A pillar where it was wired behind the airbag and down to the fuse box.
I didn't get much chance to drive it until it was dark. The rear vision in the dark is non-existent as expected (I have had several camera mirrors with Range rovers). However, under street lighting or with a car behind you its good enough. I needed to turn the brightness down as the default is overpowering, even in daylight.
The straps have been used initially and no noticeable vibration. Inside the car it doesn't look third party apart from the two wires coming out of the camera but they barely show. However, I intend to get the mount just to bring the camera closer to the windscreen as the ADAS camera takes a chunk of the front vision away with the straps.
With the rear wheel and the cargo barrier in place, the rear view was pretty poor as standard. This is a worthy upgrade, and I would recommend it.