Trunk mounted battery

Here's another way to do a trunk mounted battery with a cutoff switch. Not saying this way is better by any means, it's just a different way to accomplish it. This is how I wired my Duster, no issues with it so far. Haven't had it to the dragstrip to pass tech yet, but the cutoff kills everything outside of the trunk so I don't think it should be a problem.

In order to do it this way you need to have a 4 pole cutoff switch and a high amperage continuous duty relay, I used Moroso parts for both. The diagram illustrates a stock Mopar alternator output, although it should be even less complicated for a 1 wire setup.