I have removed the bail and pulled the cover off of my light switch at the end of my steering column. The wire and disk with the brass connections ( switch) have been moved out of the way. The end of the horn rod still has the brass ring and fiber disk stuck on it. Les Andrews book says to just pull it off. I have pulled on this with needle nose pliers and it will NOT come off the end of the rod. It appears to be locked onto the end of the rod somehow. Any advise would be appreciated. It is a '30 Coupe.