I just bought a sub and amp from my buddy and am trying to install it. The previous owner of my car had most if not all of the necessary wires. But has it rigged all ghetto. So I'm trying to connect the thick wire that goes from the battery to the amp, by the side that goes to the amp doesn't have one of those metal ends that I can put the screw threw it's just wire. And it really thick so indont think Incan really just twist it on the screw huh? I really don't know A THING about any sort of wiring or electrical. Help please! I would post a picture but idk how to, I have tapatalk but I can't figure it out