I just dropped my zcon 15 into an optimal custom box and it is almost doing more bad than good, I feel like everything in my car is about to fall apart. my sunroof in my 99 grand prix is literally jumping out on songs that hit low. the sound is insanely loud, and to make this a harder fix, the sunroof hasn't worked for a good 7 months. so I can't back it out to lay down deadener. it isn't a fuse all my fuses are good, and I'd love to do this without having to go through fixing the sunroof just to deaden it