That picture shows the
Horn Button Retainer which is replaceable, as is all the others. Under the Horn Button Retainer which is removed by the Steering Wheel Nut, is a
Horn Contact Spring and Bushing, then the
Steering Column Upper Bearing which has the wire attached to it. I imbedded links to all these parts so you can see what they look like.
As long as you steering wheel doesn’t have play, the wire is still poking out the upper side of the lower portion of the column under the dash, has continuity and isn’t grounded out, replacing the “Horn Button Retainer and “Horn Contact Spring Bushing” should get you a working horn.
