The installer came today and ive had to change my options. The bullet camera is too big for the bumper, and we're not sure about the fitment (i.e. whats behind it)... Is it some sort of foam or is it a metal piece that would require a hole drilling in?
The other camera i've got, is too big to fit next to numberplate lights as i've the Euro style numberplate lights with pressed plates, so its a very tight fit
I've bought (from Amazon) the numberplate light housing with camera, as described above. Looks the same, same dimensions etc, for vauxhall, so should fit ok. Have decided to remove my metal plates/numberplate housing and just stick to normal OEM style for now.
So the installer checked everything, and wiring is fine... but has had to order a small box for the power, a relay maybe(?) so when the reverse power signal is sent, it doesnt' mess up the electrics as the camera will be powered by that!
After all that, the camera will be installed on Thursday!