Horn does sometimes works, sometimes not

[fixkick]

forgot to say did you check all fuses first? never skip this ,and loose fuse or rusty or damaged seen like crack on it anywhere.
horn wires tabs pulled at horn. test.
now some words on clicky relay.
1: if does click that means button and clock spring are good (wow) and relay bad?, (contacts inside burned) but a voltmeter proves this in minutes work.
2: if not CLICK that relay both relay or clock spring /button can be bad. (bad relay coils are very rare here) but again a voltmeter proves this.

as you can see the click is really good to know first saving labor.
pulling the steering wheel is no fun to reach clock spring but the horn button is easy. to inspect