Its a Fusion amp and sub, Ive had it for a long time, and has been in many cars of mine, but it's been doing this since its been in this car, (2 years) but its really doing my head in and just wish someone could answer the question!! lol
It was never a problem in any of the other 3 cars, just this one, and since i installed a new head unit on saturday, and when its on it sounds fantastic, there is no problem with its performance whatsoever, the issue is just that sometimes it wont turn on when i turn the car on, but other times it will?