Horn ....
 

.... didn't work on the way home from work ....

Any ideas ? ........... And I don't mean how to make a loud noise to warn other road users of my presence .....

shout at other people whilst waving ya fist at them

Water ingress id assume my 180s horn never worked properley

Water ... seriously ... it's been 200 degrees FFS !

my sounder box was full of water enough to fill an egg cup with so....

Hmm .... So where's the sounder box then ?

What about a fuse ?

The sounder box is for my alarm BTW and its situated underneath the header tank

does it click when you press the horn Eg the relay trying to work??

Yes ....

sounds as if it maybe goosed then

although.......saying that sometimes mine wudnt work for ages then id come to press it going round a blind bend and it would work.....

To take it off is a bumper off job though which is a PITA

Hmmmm .... Oh well.

not the sounder that does the horn,
the horn sits behind the front bumper and the original horn was pretty poor,
first thing id do is check the fuse, if its okay go to the horn

remove it and try power it off the battery, if you **** your pants when you touch the wires onto the battery then horns not the problem, if nothing need a new horn,

if horns okay check for power at the connector for the horn, test lamp and someone pressing the horn,