Here is the question, I have a 2002 road star warrior that was purchased after some modifications. I have had several electrical issues that I believe can be traced back to a grounding cable that was replaced. That issue is resolved but now I need to know about grounding of the ignition switch. The previous owner installed the switch on the plastic air intake cover, where it is hidden from view. There does not seem to be a grounding wire except in the switch itself. My battery (which is new) drains down after about 12 - 16 hours. Does there need to a ground to the switch itself since it is installed in plastic.