I would like to install a hidden security switch on my OB to give me some piece of mind while away from the boat hunting. I take other precautions (and tricks) but hate getting fuel on my hands prior to hunting. Would I need to ground out both cylinders, or ground the coild itself? Has anyone else done this? Would it just be easier to pull the cover and disconnect the plug wires, or are thieves smarter than that now? Thanks.