Thanks for this detailed answer. The chassis is normally grounded. Has anyone tried sending a positive charge through part of it? Combined with a Powerline-styl

Thanks for this detailed answer. The chassis is normally grounded. Has anyone tried sending a positive charge through part of it? Combined with a Powerline-style signaling system, some components wouldn't need wires at all. I already can think of several reasons why this wouldn't work, but I wonder whether there's a good idea in there somewhere.