Well my 10" Polk Momo is not working so I checked the fuse and it was blown and probably got extremely hot because it melted a little bit of the fuse housing so I replaced it only to find that the sub then made a crackling noise whenever bass was supposed to be happening (while radio on) and sounded like it was hissing a bit. Upon checking my 500 watt Rockford Fosgate Punch amp I found that it was extremely hot after only being on like 5 minutes. I don't know alot about amps/subs so does anyone know what this might mean or what I should do??