I am mounting my 12 volt electric fertilizer spreader onto my Toro walk behind and have a few questions. There is 2 wires coming off the engine both have power and go to the clutch and key switch, can I splice into either of these to run the spreader? I will install an inline fuse to protect the spreader motor from surges. I am just doing this as a back up for my Yazoo that I normally use for spreading, it quit on my once so I like to always have a back up unit ready to go. It will also save some space on the trailer for smaller jobs.