That's the relay contact you're pointing at. The wires to the coil need to be connected power and a horn button (ground) to make the coil pull that tab down and make contact.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.