I have 3 horns. The one I found was attached to the plastic air dam in the front with wires running to a relay with a blue wire plugged into the relay. After some troubleshooting, the relay seemed to be an add on, blue wire is the horn wire and I found the other 2 covered up by the splash shield behind the headlight. Double checked the relay, relay was good, and checked the blue wire to make sure it was the horn wire and not the foglight wires as the PO thought they might be, and plugged it in to the other 2. No horn but once I got a weak sound from one so I think I'll check the ground and make a new one also.
Seems like a lot of work just to be able to honk at people!