I had the same questions with my 4320. I have both front and rear auxilliary lights installed. The front lights mount on "brush guard" brackets available from JD that surround the factory lights on the ROPS. They are easy to install, but the brackets are pricey for what you get. The rear lights mount on the ROPS directly. The problem is when the headlights are on, both front and rear lights are on as well. The fronts can blind you when turning around to back up. My solution was to buy 2 JD work light switches (MIA 10204). I had to cut and splice the wiring harness that came with the ligths and I needed to buy more wire and wire loom to run everything over to my right fender. (Don't cut the factory harness if you can avoid it.) Now I can have just headlights, headlights and fronts, headlights and rears, or all three sets at once. I think at some point I will get a canopy and mount the fronts on it. The brush guards will be useless so maybe I will get two more lights to mount on them. I'll swivel them so I have lights on both sides. I dont think one can have too much lighting when working at night.
