What is the physical location of the horn relay 1973-SOLVED Options

[HalfMoon]

I think the PO removed it (certainly removed the horns and the horn buttons not connected to anything).
In order to pass inspection I have to wire in horns, but I want to identify/find the relay if it's still on the car. No idea where it's supposed to be located. Doesn't appear to be located on the back of the fuse panel (according to Haynes). Soooo, where izit, lol?
Thanks!

[bulitt]

David- you may want to get a 12v power supply and power each circuit individually. Then you will know if the circuit/wiring is working- wipers, horn etc. Pull all the fuses, attach the power to the wipers, horn individually. Then you maybe able to isolate the problem to switch, fuse panel, relay, wire, or component. You maybe doing all this work only to find the horn, wiper etc are defunct. I would think a low amp 12vdc transformer would work and if there is a short somewhere wouldn't cause major damage as using the 12volt battery could. I did this on all my components prior to re-installing. Nothing worse than installing that fresh air box/fan only to find it doesnt work. Touch the wires to the horn as example, it blows, move on back to the wiring at the fuse panel or relay, horn blows then put fuse in and check fuse, horn blows, then move to next...etc. Establish a logical pattern of checking stuff.