63 Dodge 440. Steering column not providing a ground

[GASSR]

Hi there, I am rewiring my 63 Dodge. The wiring is not factory. I have a different horn and different relay style. This is all connected to the black wire on the steering column connector. The horn does not work when pressing the horn bar. If I remove the center of the steering wheel, unclip the black wire from its connector and ground it (to the car door), the horn works. If I touch it against the nut on the steering shaft, it does not work. I checked my shop manual but I do not see a diagram showing how this is supposed to work. Any ideas? Thanks.

 

[RemCharger]

There is supposed to be a short ground strap from the dash frame to the column

 

[PurpleBeeper]

Run a ground wire from the column to the body near the dash. In 1970, the factory did this with a 6” piece of black wire with two loop connectors. It went from the column bracket/column bolt to a column bracket/dash bolt

 

[GASSR]

Pretty sure I don't have that. That would definitely explain the issue. Thanks for the quick response.