I have a 2003 411 Oceanis Celebration 3 cabin model made in France. I am thinking about fitting a Jabsco quite flush electric heads conversion kit in both heads. I believe that the electric heads was an option on this model when new. Can anyone please advise if I need to run new wiring for the heads or is the wiring already fitted into the wiring loom/harness, and if so any idea where to find it.