Using horn from later model Chevy on my 1969 truck

[dmjlambert]

I did find one of the horns had a messed up adapter (1st picture) or messed up soldering job of mine. The high horn sounded horrible and only lasted a few toots. Horn did not work with my adapter on, and did work when connecting directly to the horn contacts. So I left the adapter off, wrapped the stripped wire around a larger nail, and soldered it directly to the horn contacts. Filled the horn's connector with RTV. Looks fine and works well when installed. That is probably a more elegant way, because now I have fewer connectors and better connections. Now I have a two-note system.