Whoops! Uploaded the wrong diagram, hold on….fixed
I redrew my schematic to show changes made in the last year. I dropped the Doc Watson meter, added solar panel controller, and added large fuse at the big aux battery. And I added a 15A fuse on the small wire that runs from the ACR to neg return. It’s a safety in case of an internal fault in the ACR. Also, I corrected mistake in last diagram where the ACR was connected incorrectly to the aux fuse panel. Now you see it is fused at panel. I should make it clear that I do not have a power feed to the fridge cooling system. I may add that later, but I don’t miss it.