I had the EXACT same problem as somyoungguy with the AVICF700-BT series, black out screen and still hearing music etc. Fixed that by changing the brightness back to 10. Now after i parked and came back, and turned the car on it wont even work.
The Splash screen comes up, but DOESNT say that the start-up is in progress. It just shows the picture there, then goes completely black after about 10 seconds, and obviously doesnt work. The bluetooth light blinks briefly one time at the very start but doesn't connect to my phone, so obviously the unit isn't on. Its not a power connectivity iss