installing a 12v one wire horn

MikeK has about the simplest idea.If you are not familiar with electrical theory it is hard to explain in writing.Standing next to the car somebody could point out the problem and explain it.As it is you are trying to pound a square peg into a round hole.The Model A harness is not made to run a one wire horn.It can be made to work,but it will need some electrical surgery,which a couple of guys have explained how to do.You can also just run a separate button for it,a hot wire to the button,and a wire from the button to the horn.Maybe the thing to do is to buy one of the new reproductions,they have the two wire connection.You can just bolt that up and go.
 
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