Morris Minor Owners Club

please can anyone tell me how to wire a klaxton horn on my moggy thanks

Klaxon horn is not strictly what we think of as an 'air' horn, although of course all horns make noise by vibrating the air..........
Power to switch - wire from switch to horn, earth lead from horn to body. Simples!

If you are replacing the original horn then power to horn, horn to horn push, horn push to earth. The wiring will already be there, you just have to extend the wires to and from the horn.