UPDATE:
Spent quite some time installing this, obviously bit of a pain running hidden wires from behind rear view mirror n(front screen), to rear view camera (rear screen) and also down to fuse box. I already had a piggy back fuse, so opened up the cig lighter power socket and there were 3 wires, black to earth and a red & yellow wires to the centre (fused) connection. So, black to a tested earth point, yellow and red together to a tested live Ign on. Nothing, no light on the camera. Tried a connection using a 12v M/C battery, nothing.
So, ordered the hard wiring kit, which came today, set it up in the kitchen, 12v battery, hardwiring kit, camera, its dead!
Just sent an email to Costco, dont want to drive 160 miles to take it back.