I am considering adding a 9" Led light bar on my 2004 Rancher 400 AT. The light bar is 54 watts. I would like to tie it into the existing accessory socket wiring so it will only come on when the ignition is on. I also plan on using a handlebar mounted on/off switch. My questions:
1) is this size (54w) okay for my electrical system?
2) should I wire the positive side back to the battery?
3) should I use a relay?
4) do I need an inline fuse to positive?
I am only mildly proficient with wiring. Any help will be appreciated. Please be as specific as possible.