How to ground the steering wheel?

[John Middlesworth <jape@email.unc.edu>]

On my TR4A (negative earth) I find that the steering column is poorly
grounded, making the horn button work only occasionally.  When I checked
the steering rod coming out of the rack and pinion, I found that the
problem begins there--lots of resistance.  (Don't worry, all the grounding
wires are in place at the rubber couplings.)  How then is the steering
wheel properly grounded?

John Middlesworth
1966 TR4A