Where is the horn relay on a 1969 cougar?

On a 1969 Mercury Cougar, the horn relay is typically located on the driver's side of the engine compartment, mounted on the inner fender or near the firewall. It is a small metal box with electrical terminals. To access it, you may need to remove the air cleaner or other components obstructing your view. Always consult the vehicle's service manual for precise location and identification.