Two things: All of a sudden, when I start the car and put it in drive, the rear backup camera is on for a minute or two before it shuts off. I'm out of the driveway and up the street before it stops. That's a new development. And, I was sitting in the car with the windows open and the engine off and I could not find a way to get the electronics to shut completely off. It kept beeping a battery discharge warning at me. Any suggestions for either of these issues? Thx