I have a camera at each end of my garage and one in my car port, one of the garage camera and the car port camera get there 12 volt supply from the same s/socket, the other garage camera gets its supply from the garage, this camera at night shows the interference badly and slightly on the other 2, i have fitted ground loop isolators to all the cameras, which has not solved the situation. Has anybody an ideas how to get rid of the interference, would suppling the faulty camera with the same 12 volt supply as the others solve the problems