Hey guys, so my friend recently got a truck and we had a JL 1000/1, JL W7, and an alpine deck installed. It was fine for a few months, but now when we turn the volume up, the bass cuts out and a light on the amp comes on that says "Low V". Does that mean low voltage? Do you thing if we put in an optima yellow top in it will solve the problem? thanks here is a video of the system