my sloution to the BUZZING!!! GREASE!!
like most of you i had the buzzing issue..damn noise drove me nuts!!....part of my solution was to use waterproof plumbers grease on the rubber isolators on the headlight and instrument panel....also on top of the foam pads around the guage cluster and fairing....i removed the windshield brackets and smeared a thin coat between all metal contacting surfaces....use it sparingly...rubber will SQUEEK like hell when it's dry...works great!!