...close to the battery? I know from my car audio days they always suggested as close to the battery as possible when running power from the battery. I assume that was because anything on the car would be considered a ground and could short easily enough so I assume in a marina environment you don't run into this issue as a ground is only present around the engine block or if you have a ground terminal installed remotely?

I was planning on re doing some connections at the battery for ease of removal and installation and was debating between a fused distro block vs non fused to save some money.