It's a 240 watt amp driving a 300 wat sub (i think i might upgrade if nobody knows why this is happening) everyone morning my amp doesn't turn on. if i pull the little fuse on the side of the amp and plug it back in, it'll make a spark then the amp will work. The amp works the entire day regardless of whether i turn the car on and off. the next morning, it won't turn on again until i pull the fuse and make a spark. thanks all!