Well I crawled under the trailer to have a good look see and took a couple pics so since I took them you guys get to see them.
It appears that I have about 6ga wire coming off one battery to my disconnect switch.

Off the other battery there is about 4ga wire that runs into the genny compartment so I assume its the genny starter cable? As you can see there is just a little bit extra all coiled up.

Here is an overall look at the mess, guess I should tie up my propane hose as well, didn't realize it was hanging down that far.

Not sure why they are upside down, there facing right until I upload them into the photo app?