I recently noticed that I have a vibration type sound emanating from what appears to be my engine area of my 2004, K1200 LT. I initially thought that it might be the relay for my PIAA driving lights, as the noise occurred whenever I activated the on switch and ceased when I turned them off. But i just discovered that it occurs when I apply the front or rear brake (activating the servo) and disappears when I release them. Could this be the alternator or a part of it (bearing) when I apply a load to it ? It seems to go away after I have run the bike for a period of time but, returns when I start the engine after a short respite (refueling). Anyone have this issue in the past? I have a fairly new battery (7 - 9 months).