I just bought a 1996 Chris Craft 21' Concept Bowrider. We had the boat gone over by a marine mechanic before we purchased it. We're the 3rd owner. The only issue he came up with is that the "house battery" positive connection wire is missing, (and the battery), and it's so far, less than obvious where it is or exactly what it connects to from the battery? Without it we seem to have no running lights, horn, stereo or deck lights. Might anyone have a answer to my issue?