i have an 86Z28 and my horn doesn't work either.It used to work. but one day i was sitting in my house doing something and i heard the horn go off by itself and i went outside and hit it and if went off but it blew a fuse when it did. i replaced the fuse by now when i press the horn it makes a clicking sound and it drains the battey gauage to. any ideas would be helpful
thanx

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350 vette engine
aluminum heads
235/60R15 BFgoodriches
3"flowmaster exhaust
20% tint
hatch wing
2 12"kicker solos