I'm thinking of replacing the wiring to the mast from 2-Wire to a 4-wire. Can anyone tell me if there is any open space between the deck and the cabin headliner to allow for the wiring to be routed through this area, under the starboard setee and to the switch panel ? I know replacing the wiring in the mast will not be a problem, but I'd like to know what I might be getting into before drilling any holes in the deck or headliner. Also, I'm not in favor of having any switches on the mast. To me that's simply too inconvenient and an unrealistic arrangement. Thanks, Ed P. "See Da Moon" S/N 13106