Hi there new defender owner loving the quirkiness, being a Citroen 2cv DS owner all strange things gravitate to me!

My horn ranges from working perfectly to beeping faintly (when pushed a few times) to not working at all.......
Checked the fuses seems OK, tried to trace the earth wire from the horn but it goes into the main wiring loom so couldnt confirm. Checked the stalk and it seems ok.
Now I have done a few searches, maybe it is linked to the alarm system, which has never been used by me or the previous owner..something about an alarm ECU I just am not sure???????

Any tips/checks etc I can do, oh and pretend I am a 5yo when it comes to electrics!!!!

Cheers Adam

ps. great site!