horn not working

Sorry to be any trouble BUT wy horn is not working off my steering wheel or alarm,I can hear clicking in fuse box when pressing button but no sound.Ive looked through handbook but dont know where the fuse/relay is help please.

http://www.the-t-bar.com/en/forum/9-mgf-tf-pitstop/87873-horn-button-dissembly#104328

Have a look at this

Just tested power down to horns,there is power down to both of them,so i presume horns have served there lifespan

could be a dodgy earth,finding this more and more,try re earthing the horns,having both fail at once.

Can i just cut the earth wire(black wire) from both horns and just earth to body?

I'd advise some more testing: some horn circuits work by having a permanent live with a switched earth: not sure if the TF/F is wired thus. Easy enough to test: with a meter check if you have permanent 12V to a good earth.

If you haven't yet done so test the horns direct with some cable direct from horn terminal to battery.

If no joy I'll check out a wiring diagram 2moz.