I have a Mitsubishi outlander GT 2014 with a radio Rockford fostgate model 8750A373. The display went gray and I don't see anything. I can listen the music and change the stations using the button located in the guide. But I can't see the reverse camera nor GPS nor anything.
please help

 

I had some screen trouble with my 2007 where it just went black. It seems to be an electronics issue. I gave it a few gentle whacks and it came back on. It's only gone out periodically.