First the backup camera on the car started to intermittently just give fuzz. It would do this for a minute or two and then go back to working. Then the radio volume started not to work intermittently - not with the bluetooth but the radio. The car did not recognize in any way when I was changing the volume either on the radio itself or on the steering wheel. Then the radio presets disappeared completely, back to zero - not even to factory defaults, they were just gone. It's getting worse.