Hi, yes basically what it is, is that as soon as it turns on it says: The temperature is too low. The CD/DVD cannot be played at the moment. Pleae wait... After half an hour I'm finally able to do something on it as when it says that I'm unable to do anything, no button will work, can only listen to the music and control the volume. It happens when unit is in the car or at home with only +12 and ground connected to it. Any ideas?