So, there's 4 sensors on the back of my bumper. I recently replace 1 with a rearview camera. However, when removing 1 or more sensors, the rest doesn't work. Could I somehow rewire it to make the 3 work? Reason is...I don't wanna drill another hole in the bumper. Thanks for any input guys...I will post pics shortly including DNX-7100, bluetooth, pac-jack, aux a/v, ipod control, rearview camera, farenheit screen.