My unit just stared doing this yesterday. It's not really a problem as it does not affect the audio, etc but it is kind of odd nonetheless. When I put my vehicle in park and turn off the key, my camera will come up on the screen just like it does when it is in reverse. This is only when I turn the ignition off and prior to opening the doors to kill the accessory power. I don't think it was doing this prior to yesterday, but maybe I didn't pay enough attention. I have looked all through the documentation and tried all kinds of settings to no avail. Anyone else ever experience this?