I know on a 69 you have the simple buttons on the wheel that are held in by little pressure clips. These push down on the horn plate in the outer trim piece that then causes the plate to ground against the column. You should have a plastic insulated pin switch with a spring that comes through the wheel mount part of the column. That goes down and twists into place. It has like a brass metal pin in the center of the plastic with a small spring around it. Without that in place the horn will not work.
The horn is part of the basic blinker wiring harness that comes up the harness to the blinker switch plate. There is nothing to wire/add between the lower and upper column, wire harness wise, other than that little plastic pin switch.
This is tough to describe, but maybe you are getting the picture????
|