So I have a 2007 Nissan Versa SL never had an issues with the radio before. This morning when I started the car I noticed that the display on the radio was on but blank, it didn't display anything. I cannot change between aux/radio/cd however the audio works and is stuck on last night's FM radio station. No buttons on the radio counsel works and I cannot see anything on the radio screen . It's weird how this can just happen over night. Any ideas what can be happening?  ‎