Tonight I made some progress with tidying up my loom. Until.... I traced my horn wire back through the harness and it ended at a plug!!! With no other plug to match. with the aid of skov's wiring diagram I realised that there should be a horn relay here. More parts to buy!!!!

__________________
Click to see my build photos on Flikr
http://www.flickr.com/photos/67112582@N03/
Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack.
Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though).
Car iva'd and passed 15/08/2014. Finished weight 572kg.