So here is a weird gremlin. I noticed my horn was not working today. I looked at all the wire connections and everything looked ok. I started to play with the steering wheel and noticed that if the wheel is turned counter-clockwise, the horn works. If it is left straight, or turned clockwise, the horn will not work. Thoughts?

Problem fixed. I did some searching and reading on Italian 500 forums. It was a simple fix. Right after the bright light turn switch is a plastic cone on the steering shaft. Under that cone is a flat head screw. The screw came loose and the cone slide down the steering shaft a bit. I loosened the screw some more and pulled the cone toward the steering wheel and tightened the screw. Viola, the horn now works in all directions. I guess it must have come loose during the replacement of the steering box.