Cadillac 4 Note Horns

Installed early model Cadillac 4-note horns (the 4 notes are A, C, D & F.) that were an option on the big boat vehicles back in the day. You can hit up some junk yards (take a cordless drill battery with you to test them) or get them off eBay. Just do a search for Cadillac 4-note horns on eBay, Goggle or YouTube.

I got mine off eBay from a guy who tests, cleans, paints and guarantees them for a year (auction link.) Mine came off a 1984 Cadillac Deville and I paid about 80 bucks with shipping. While the train horns are 154db and these are only about 120db, they sound just like the train horns plus they're legal so I can blast them all day long, which is great.

The videos I shot does not do them justice, as they are quite loud.

VIDEO 1

VIDEO 2

Here's the schematic I made up showing how I wired them. I most likely went overkill, but I read where they can draw quite some power.

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"A" Note Horn

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"C" Note Horn

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"D" Note Horn

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"F" Note Horn

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They came with all the connector and all I had to do was make up the harnesses

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I bolted them together in pairs after modifying the harnesses

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Harnesses all hooked up

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The two relays, one for each set.

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The relays loomed and zip tied down.

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I mounted them down underneath. The skid plate will hide them once it is back in place.

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