Disco 1 Horn and Hazards

Hoping to sell my Disco soon, but I need to fix the horn, it doesn't work, what colour are the wires behind the steering wheel so I can short them out and see if thats the issues as I have had the push to bits and it has no power at the push so I assume its that ring thing that joins the push to the loom?
I have swapped the relay and its no different.
Hazards just don't work again can I short the switch and try to find whats wrong?

Just located the horn relay and I don't appear to have any power to it????
Assuming its the one in the passenger foot well first i a row of four one with purple and green connection same as horn?
I have checked the engine bay fuse its all ok

Any ideas or a wiring diagram?

not sure where exactly in it you will find what you need but its prob in the RAVE software

I know but I can't find my disc!

there should be links about to DL it i would find one and post it here but not sure if its allowed. but im sure google would be able to help if you just searched "land rover rave download"

RAVE for Disco 1: http://www.green-oval.com/data/lr/rave03.iso

RAVE for Disco 2: http://www.green-oval.com/data/lr/rave01.iso