[Janusz]

Thanks for the info. I'm not sure if outside the body is the right terminology on my part.

The electrical runs inside the cockpit along the tunnel (hidden by the carpeting), up the back wall (also hidden by a back panel) then into the trunk. I would prefer not to have the electrical along the back wall, and instead go through the back wall at the bottom of the tunnel, then run along the inside (outside?) above the rear and into the trunk. Not sure if that explains it. I will look up the spiral wrap.