I HAVE A AVIC N4 INSTALLED FOR 5YRS. AND OVER THE WEEKEND MY BATTERY WAS LOW. SO I CHARGED BATTERY STARTED CAR NOW UNIT CYCLES ON AND OFF NON-STOP. IF I PUSH RESET BUTTON UNIT WORKS FINE AND STAYS ON UNTIL I TURN CAR OFF THEY ISSUE STARTS UP ALL OVER. NOT SURE WHAT IS GOING ON ANY HELP WOULD BE GREAT.