well. today while i was driving back from school, i was listening to my music, and i realized that the woofer sometimes turns of for like 5 seconds, and then it turns again, its only the woofer because the music is still working, what would it be, i got a new deck for the car, and new wiring, good fuse everything, but today i realized that problem, i need help please, the ampli and woofer are brand new i got them past september. help please.