Lee, yes new wiring harness is being installed. Converting to 12 v. After further reading and though will fuse each circuit. Never thought about a disconnect until you mentioned it, so will install that also. I was planning on using the original light switch which does have a fuse holder on it and also horn is also wired off of the switch. So will fuse horn separately. I have a new 6 position fuse block and was hoping that would cover everything. Any thoughts on that? Also see there is lots of info on the tech tips. Thanks again for you help. Bill