The wire coming off of the horn relay is supposed to be there. It has a fusible link near the blower relay. It runs along the driver side wheel well behind the distributor and into a orange wire that is part of the relay for blower motor. The diagram you gave me isn't for the car I have with a/c. Mine is very different unfortunately. The wire off the horn relay has been cut and left hanging by the distributor. Instead of being hooked up to the relay someone ran an all orange wire from the fuse block to the relay instead. If I'm reading the four seasons schematic correctly the orange wire at the relay is for high speed only. This is where I am having trouble.