Connecting rear view camera to Garmin 885T GPS

Has anyone connected a rear view camera either thru a junction box connected to the vehicle stereo or directly to the GPS? Garmin provides loose instruction of hooking a VIB10/11 into the set up and connecting the GPS and NTSC compatible camera to the VIB. The VIB is difficult to locate and the cameras are only about $40-70. I'd rather hook the camera directly to the GPS.Wireless is another possibility if the transmitter/receiver could be attached to the USB or audio jack of the GPS. The GPS has software to recognize the video from the camera and will automatically shut off the map picture but return when reverse lights are off. The camera would have to be hooked up to the reverse lights I would assume. Any ideas?
Tanker