2005 Subaru Legacy electrical or not

The display for my radio has been fading in and out for about the past two weeks, the radio still works, you just can't see the display. I flicked it one time with my fingers to see if it would come back up, it did faintly, but went back off. Is that an electrical problem or a fuse, or a short somewhere. Unfortunatley, our nearest dealer is in the next state over, so any help would be greatly appreciated.