So got my radio installed yesterday along with my sub and amp. Well today I go to lunch listen to my bumping tunes (lol). Shut the car off and everything was like normal. I admit I played with a few settings for the amp and audio and such. Nothing that would cause it not to work (BTW, its a DEH-P7600MP. Pretty sure atleast) and then I go and start my car to head home and its not turning on anymore or anything.