Its not worth it if there's no water.
The limiting factor is the harness, there's only so much slack, and....its a thick ass bundle.
The work to extend it/make it reach higher, like to the ceiling, would be more than the work to water proof the truck. :P
It would be easier to pot it in a water proof heat conductive housing at that point.
_________________________
- TJ
2001 Xterra '03 VG33, SE 5 spd, 305/70/16's, Revolvers, UBSkidderz, Doubled AAL's, 3"SL/2"BL, winch/bumpers, skids, sliders, OBA, Snorkel, pine stripes....
Friends don't let friends drive stock.
http://www.gifsoup.com/view/501230/tj-tackling-crawlers-ridge-o.gif