My friend has a 94 mustang that he is rebuilding and he needs to know where the wires for the horn go through the fenderwall, the path they take, and where the end up. thanks.
Your horn is on the same fuse as your cigarette lighter. They are both on all the time. From the horn buttons the circuit (yellow wire with a light green strip) goes to the horn relay located in the power distribution box on the left inside fender. From there it's a single dark blue wire to both horns. The horns are grounded through the horn bracket.