As above guys the previous owner of mine broke it and put a screw in the little tab. So i need a whole new assembally the bit that goes under the bos kit i think it is.
No its the little bit under the boss kit. So its like a piece that goes in between the boss kit and the steering column. It has a brass or copper ring with a spring tab thing. The spring with the steel rod is gone and there is a screw in there. Its not very effective and the horn only works when you are full lock.
Is hard to explain. I will take photos in the light to show you.