Its not a terribly big deal, but i noticed that when cruising on my commute, the tach will sort of bounce when I'm cruising at a constant speed on cruise control. Its only a slight movement, probably half a centimeter but still makes one wonder if its an early sign of an electrical problem. Wondering if anyone else has been having this problem. only seems to happen at high speeds on cruise, as where this is where the engine speeds remains most constant.