Just a friendly suggestion but I think you should check the laws in your state, particularly since in some states there is a chance it could impact your insurance coverage. I did this around 2000~2001 and discovered at that time a Klaxon, train, trumpet, siren or any other "novelty" horn was legal if connected to a separate switch but illegal if connected to your horn button and relied upon as your primary horn. Of course back then most states were performing annual vehicle inspections and today that may or may not be the case. And some of those laws might still be on the books. Good luck!

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end