I've read all the posts and grasp the basic concept, and without reinventing the wheel, I wanted to see how much of my existing setup I can use, without re-running all the existing wiring. I've got the battery grounded out on a solid ground, positive lead to kill switch, other side of switch to a fuse and is 1/0 to the front of the car where it splits on a dual post battery isolater to the fuse panel, alt, and starter. I know this setup needs to have a kill switch for the alt, but I don't want to run a second 1/0 gauge wire to the front. what would the larger single wire I have now be connected to? Using a remote solenoid in the trunk is also an option. Thanks!