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Have you got onboard screen/monitor to view?, if so just buy rear view camara (night vision) that fits number platehttp://www.ebay.co.uk/itm/170-Car-Rear-View-Reversing-Camera-Back-Up-Parking-Plate-Night-Vision-4-IR-LEDs-/252512799038?hash=item3acaef893e:g:Zm4AAOSw65FXvxO h