Some folks are reluctant to help with wiring becasue boats have different accessories, different wiring configurations, and one mistake can cost a guy some duckets.

What I did, to keep my old brain from letting me down, is with everything working just fine, I take a digital picture of the battery boxes, wires, and set ups. Then print them out and save them somewhere save.

Sorry you didn't get some help....just a scary deal. Hope this suggestion helps make things easier in the future.