Good to hear. That leads me to wonder about the voltage regulator. Generally my experience has been when this happens it is either the battery (first) or the regulator (second). But for something completely different (if this only just started happening), check all the wires at your horn relay, your horn button, your horn...everywhere in that particular part of the electric world. This happened to me once about 50 years ago and as I recall I finally found it in a loose or broken wire/connection there.