Horn problems. It does one of two things--either makes a clicking sound with no beep or makes a quiet beep. Relay? Dirty contacts on the horn buttons? If it is a relay, where is it located?
My 67 coupe's horns are so whimpy, it makes my Toyota pickup horn sound good. I think there's an adjustment screw on the horns, but I am too lazy and just hit the gas if I want to catch someone's attention.
One of my horns was seized, If I can remember correctly there is a screw plug on the horn. I removed it and sprayed some WD 40 in there, then hit the horn a few times and eventually it started working again.
My 64.5 had a pretty funny sounding pair of horns too. To remedy the problem I just cleaned the contacts on the horns them selves real good and it took care of the problem