subs shutting off

[iamedelmann]

I had a system put in my suv about a year ago and it was always fine. It just recently started doing this thing where the subs shut off at times. maybe this is from pulling too much power? I dont have a capacitor but ive had this system almost a year and its never done this. Ive tried wiggling the wires going into the amp but that doesnt seam to make is go on or off its just random. any ideas

[ThaiRacer]

maybe u should recheck the whole wires, i had the same problem before but then i rechecked all the wires and there was a cut in the wires which was touching the medal in the car which made it turn off time to time