Another quick comment.... On any wiring endeavour that I tackle that leaves a clump of wires (and would work GREAT on the fuse box..) is to use some double sided Velcro electrical cable ties and a piece of wetsuit neoprene. I have some 1/8" neoprene with lycra on both sides and then just wrap her up. It has proven time and time again to be really water resistant and is super easy to remove for cleaning.
I'll snap a pic of my KTM headlight wiring when and if I make it home
Really cheap too