Starting over help

[Bdun111]

Hello. I have come to the conclusion that whoever we bought our Club Car from, should have labeled all of the spliced wires.
I am starting from scratch and need suggestions on the best way to wire our 48v (6, 8v batteries).

Currently we have a LED light bar up front, rear led lights, a marine grade radio, overhead speakers, front winch, solar panel, and (2) in-dash 12v outlets. There is a toggle switch in the radio area for the lights. Except the winch, everything was connected through a 220w 48v to 12v converter/reducer. I believe the red output wire is bad since testing with multimeter worked on other wires not the red. From what I can tell, the radio, front led light bar, and something else used in-line fuses, not a fuse block.
We have a in dash voltage meter and a overhead digital meter. Hopefully that is everything.