"Chirping" horns

[dave houser <mgs4dave@tampabay.rr.com>]

Listers,
Horn worked, now "chirps". Where to check? 4 years since complete 
restoration. Used copper dielectric grease to avoid wiring probs.? Took 
wires off horns, made sure clean metal connection...checked fuse, ok... 
put star washers where horn brakets come through fenders to attach horns 
to improve ground...Where else to look? Anybody have this prob? Where 
can you find a picture of the horn diassembled. Can't find it it any of 
the factory manuals.
Cheers,
Dave Houser