kenwood dnx 7120 vim and rear camera

I installed a Kenwood DNX 7120 unit. I did the bypass for the video in motion by grounding the light green wire on the harness. It works. I also hooked up a rear view camera. The camera only works when I put the video cable into the A/V input/outputs. It doesnt work when the video cable is connected to the rear camera labeled cable on the unit. I do have the correct reverse wire. I dont understanf why it wont work. Is it because I did the video in motion bypass and the unit thinks the car is moving? So the rear camera wont work? Thanks.

Hi, Did you check the AV Interface set up menu, page 2. R-CAM Interruption needs to be set to ON. May need to select R-CAM Mirror depending on camera used also. Mark