I have a 1997 Fleetwood Southwind 35' wide body 450/454, with two 12 volt batteries and I think there's an extra cable hooked up to the positive side of my motor battery. Having electrical problems ...
Let me ask the obvious question.....where does that cable go? Where does it attach to? That would be a simple answer, to me. On any electrical issue, I go from the known to the unknown. You know it has a cable, find the unknown to where it goes. I would think that would be a fairly simple fix.