I'd been home for around an hour, when I went back out in the garage, I noticed the stereo was lit up, so I pressed the off button, but it didn't do anything, all the lights on the head unit are lit up but the screen is blank, I couldn't turn it off or on, I removed the fuse, it still stayed on, in the end I disconnected the battery for a few seconds and all was well again, any ideas?
