[motofoto]

I used an new early Fuchs cap ordered from our host, and a standard Momo horn button. I had to remove the 3 prongs on the cap and grind the surface smooth. I also had to grind using a dremel the plastic housing area around the outside of Momo horn button so the button itself extended out as much as possible to be in contact with the centercap. Lastly, I ground down a bit of the inside lip on the cap to get a smooth clearance between the outside circumference of the Momo button housing and the inside circumference of the lip on the Fuchs cap when pressing the horn. I used JB Weld to hold the pieces together. Once you have the parts in your hands, it becomes pretty clear what needs to be done to make it happen.