Master Lock 4843DATSEN Vehicle Back Up and Hitch Alignment Camera with 3.5 Inch Color Monitor Easy to install camera slides into 1.25 inch or 2 inch hitch tube for use while not towing Magnetic base allows for mounting to any metal surface of the vehicle to use while towing or attaching trailer No wires to cut or splice, camera plugs into the existing vehicle tow wiring outlet Trailer wiring plugs into pass thru T connector on camera plug to allow use while towing Image disruptions on display can be caused by Bluetooth, cell phones, GPS devices or satellite radio