G-body horn wire fix?
 

The wire to my horn is broken & I had to disconnect them from under the hood because it was stuck on. How can i fix this?

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Trace the wires until you find a spot where the insulation is worn off and shorting to ground.
If that's not it, you might have a stuck switch in the steering wheel. Measure with a meter for continuity between the two horn wires coming out of the steering wheel.