It has been a while since I have been on so yall forgive me, I have a 1990 Silverado 4x4 that my son drives (my first new truck ever, 76000 original miles!!) he advised me his horn quit working so I checked it out, could not locate a fuse or relay, I removed the horn button to find a wire with a spring on it not hooked to anything on the spring end, does this hook up, is the fuse marked as something else and where would the relay be? I would like to get it working as I am a fanatic about having everything working in my vehicles, which are all Chevy's. Can anyone help me with this ?? I would appreciate all the information your great minds will allow me!