If you own your H2 long enough you'll have those plastic windshield trim pieces buzzing. My second buzz came after a windshield replacement when they didn't use double tape on the side plastic windshield trim. My first buzz and rattle came with the factory windshield after two years and the Hummer dealership took off the side piece by the windshield and squirted mastic under it. Taking them off yourself is not an easy or quick job IMHO.