What is the best way to wire an electric spreader to a ZTR? Straight to the battery, with an inline fuse? Also, the the swith is going out. What is the switch called that's used to controll the speed? Where do you get them? All the electrical stores I've tried couldn't help me. Is there a lubricant for fert. spreaders, so the box will open and close easier. A little rust is building up, and the wd40 I tried before just disolved the fert and made it worse.