You need a switch on the dash to enable & disable the horn button mounted on the brake pedal!
Rocky
So after much effort, finally got the horn working. A lot of work involved. Well, a lot of time chasing down what's going on. Bench testing the horn button on the turn signal showed it worked. The new relay from Pantera Electronics was working properly. (It comes with a life-time warranty by the way! Way to go Jon.) The fuse was good. The horn is new and works when bench tested. But put it all together, and it was not working. Took it to a recommended mechanic who spent about an hour chasing a short that was drawing power from the power wire to the air conditioning relay that uses the same power wire as the horn relay. Long story short, he fixed it and now the horn works. What a headache for such a simple thing.
Granted, I never use the horn, but you know how we are...just had to have it working. 
@Fuzz posted:……Granted, I never use the horn, but you know how we are...just had to have it working.
…. Can I relate to that!!!!
It’s a disorder-I know- but I don’t care!
Does anyone have the moderna air horn option fitted to their car ? Any pictures would be appreciated .
6997 came with an full tritone air horn kit installed ( and yes it is blinkin loud !) but I was sure it was an aftermarket change until I saw the option in the 1976 catalog.
Now I am not sure if it was put in before or after.
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Well from what I read and see in ProvaMo, 6997 is a real Euro GTS, so I see no reason it wouldn’t be a factory option…
Since it’s installed in your car, and matches the 1985 factory catalog…. Who would argue with you, especially if the horn button and wiring appear to be factory?
Just my €.02!
Rocky
PS… I’m somewhat of a horn aficionado, so I think those are very cool!
Well I pulled off the front cover , knocked off most the spiders and took some shots. Not allot of room for these three honkers.
The air horn metal bodies are Italian FISA horns from the right period and the mounting does look like it was done late on a friday afternoon by Giuseppe with a bad attitude when all he wanted to do was meet his ragazza in the albergo.
Maybe ?
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I mounted a set of FIAMM triple air horns on the right side front wheel well panel where the original horn mounts. You can fit all 3 horns in that spot pointed down and use the original wire to the compressor they use. The sound is very cool.