Audio Systems: JVC Radio, radio check, reset button

Question
I have a JVC radio that is a little older (8 years). No repairs , one owner.
It's one of the removable faces. MY battery went dead last night...because I left the key on ACC now all the lights on my radio are on.. no music no nothing. Do you know what I can do to make it stop?

My fiancee troubleshoots electronics, but we just don't know where to start.

Thanks!!

HEELLLLPPP!!!

Answer
There should be a small recessed reset button behind the removable faceplate. turn the head unit off if possible, then press the reset button for 4-5 seconds and hope for the best as you power up the radio.
Check fuses and wiring next.

Replacing the unit may be the best way to go at that age.