First problem. Being more specific: I unhooked the license plate light and replaced it with the EchoMaster camera. I then ran the video wire to the stereo head. I then connected power wire by splicing into the wires in the taillight that light up the reverse white light. The camera works and the light on the camera works but the second license plate not longer works. I did not make any changes to the secon light. I'm wondering if it's a low voltage thing. 2) It needs to be connected to a +12 volt source that only powers on when the vehicle is shifted to reverse. So I need to find the hot wire in the dash or shifter area.