Interesting thread. I didn't even know there was a anti-rattle rubber ring! My horn doesn't work either. Mostly because there is a short in the wire running down the stearing wheel shaft. It's something I've got to address to get it working again. Got a new horn button from JC because I know I'll probably destroy the old one when trying to remove it. Lot of little parts in there!!
BTW, that old horn is LOUD!!
