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Old 02-22-2009, 07:31 PM
bluesman2333 bluesman2333 is offline
1947 Chevy Coupe
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This is not exactly your truck but the same wiring. You supply constant hot to the relay, both the coil and one side of the contacts, then the other side of the coil grounds through the steering column when you press the horn button. The other side of the relay contacts feed the horn itself.
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