i was driving and i turned the radio up and it was working fine until i switched the staging to music studio and it just turned off

i parked and turned off my truck and it still wont turn on

help?

You could have blown a fuse, or the unit got too hot and won't turn back on until it's cooled off a bit. Using those soundstaging options makes the sound substantially louder than when they are off. If you turn it on while the music is already loud, you could end up blowing something or overheating the unit.