Horn won't beep.

1948 3100
6 volt system

Horn works when grounding upper column bearing to stealing shaft.

But........no beep when all is together

Got power up to upper bearing.
Power goes through contact bushing.
But with contact plate on there is no beep.
I put on the steering wheel, horn contact bushing, horn contact plate, washer, and nut.

Any ideas?

TIA


Dennis
-there is nothing stronger than the heart of a volunteer-