No, its not a simple plug n play.
Don't believe what China Ebayer says, they've got no idea. You'll need to buy something similar to this
BMW AV ADAPTER, AUX INPUT, CAMERA, E46, E39, X5 E53 | eBay .... (i think ECS has them for cheaper) which you can plug into the TV tunner. Along with that harness comes a Reverse cam input and a reverse cam trigger wire.
A lot of mucking around, running the wires in the hatch of the X5 .....etc.