I did the same as NVR2L8.... right in the center. I purchased a double rocker switch from my dealer to match my rear OEM porch light switch and installed it in the same location as the original. One switch is for the porch light, the other is for the BC 30 wireless camera power, with the camera installed outside, right behind the switch on the rear facia panel above the entry door. I tapped power from the porch light switch, wired in an inline fuse then ran power to the other switch for the camera. I also drilled a small hole in the switch cover large enough for a little blue led to fit through, which indicates when the camera is powered.