I just had the 600 mile service done ($295 USD) and at the same time had Ducati heated grips installed. The issue is, with the grips on there is a chirping, kinda growling sound (real loud) coming from the engine area at idle speed. It was NOT there before. If I ever so slightly give it throttle, to the tune of about 100 rpm, it goes away. But at normal idle it is there. If I shut off the heated grips, no noise at all at normal idle speed. If it was a car, I would say the bearings on the alternator were going out and are making noise under load, but I have never incurred this with any bike before. Any ideas??