Hello, my first post. I have a 02 FLHTCI and when riding my voltmeter will drop below 12 volts, (which triggered a low voltage code, 16) The meter will drop and rise, drop and rise. I believe this to be some type of electrical short which is coming and going. The needle sometimes goes back and forth like a windshield wiper! This condition even exists when the bike is sitting in my barn running. When it is started, sometimes the needle rises to where it is supposed to be. When I blip the throttle the needle drops. Like I mentioned, the needle will even behave erattic when the bike is sitting still. Seems like this would rule out any wiring under fender and such, thinking it may have something to with the wiring around the engine as this is the only thing moving (vibration) I'm at my wits end here. Any suggestions as to where to look. Thanks in advance