When Lew installed my solar system we ran wires as follows: from under the bed in the rear, up the roadside rear wall behind the corner cabinet, into the rear overhead cabinet, back down the wall, again behind the cabinet, down to the roadside kick panel under the window, forward and over the water heater, under the lavatory, forward between the inside wall and the shower wall, into the refer enclosure, down thru the floor and up the refer enclosure wall and out the refer vent to the roof, open up the belly pan just forward of the roadside wheel well, snake forward through the lightening holes in the cross members to the front, look carefully, then drill a pilot up to the DC panel above under the couch, enlarge the hole as necessary. All wires were placed in looms and very carefully secured. The job was very neat as all wires are hidden. I wish we had known all this in the beginning as it would have made the job much easier and saved time. You canít be careful enough, but caution does slow you down.