67 barracuda horn wireing harrness firewall to horn relay

Cuda Al said
On the 67 Barracuda the horn relay is mounted to the core support just above the horns, the wire to the relay is part of the engine/forward lamp harness.
There is a tiny harness that goes from the relay to the horns.

The harness is seen jumping to the alternator.
Relay seen behind the horn,
View attachment 1716271931

Alan

THIS. The relay gets power for the relay and horn from the alternator, "big stud," there are short wires which jumper essentially from the relay to the horn(s) and then the horn button wire runs along with the alternator wiring, back to the bulkhead connector.