Car: 1992 323 1.6lt 4cly.

I have been having problems with my horn for a while. It would work when the car was on the move but not when it was stoped.

Now it doesn't work at all.

I have checked the connection on the back of the horn pad and it seems fine. The only problem is I can't find where my horn fuse is or the relay.

Any help if I could just track it down I am sure its eather the fuse or relay.