Bongo Fury

Can anyone show me a picture of the horn relay location? My poor old Bongo has been sat idle since August '19 & now, amongst many other things, the horn doesn't work. I know it is under the bonnet, but which one is it? I have tried searching this forum but despite being mentioned a lot I haven't seen anything to tell me where it is exactly.

Here you go circuit; F3-03 is the relay - be aware most common problem is the horn earth where it bolts on it rusts badly;
positions can be rear row left or front row middle it varies!

Many thanks Geoff, turned out to be, shall we say, 'aftermarket' wiring done before I owned it that was at fault.

Yes not uncommon!