Thank you for the tip. I noticed that the clock display area right below the windshield also isn't functioning, could that be related? Fuse?

Quote Originally Posted by petrified.rabbit View Post
if you hold the led light up to the display and the refraction of light shows the letters, then the back light is burned out.
Any issue is internal to the radio itself.

A used radio off eBay can be had cheap enough, it's easier to buy a new radio unit than trying to fix it.