obd-ii power plug

Hi everyone, I use the U3000 for a couple of months now and i had no issues. I sold my car toyota, and I plugged in the camera in my new car - mustang gt using the OBD port. When i went for a drive, the camera switches to parking mode randomly in the middle of the drive, waiting on a traffic...

Change 1:gps module combined with usb power cable,not same as previous built-in camera mount base Change 2:previous usb car charger split into two parts,one cigarette plug,and one usb power cable Change 3:OBD-II Power plug split into 2 parts also,one OBD-II Plug and one usb power cable