Navigation Screen goes blank

I was driving home from work today when my navigation froze, my music stopped the a/c turned off and the screen just went black. the ac controls still light up when the headlights are on and the screen turns on but just stays black. I checked the bose amp fuses and they are not blown. Idk what to do and i can try to take it to the dealership but its dumped so they probably wont want to work on it. Also on the way to work today it shut off and then said "loading" then turned back on but idk man. If anyone could help or knows how to fix this that would be much appreciated