1972 Duster Build with my Daughter

Did some of these come with just 1 horn? With the addition of the 26" radiator the horn went under the battery. With the Dart 26" radiator the horn BARELY fit next to the radiator.
Yes they did come with one horn, our virgin base model sure did. We are still running the original harness on ours with one horn. The second lead is just hanging loose.
I believe we have the low note horn on it now. The holes for the high note horn are right next to it on the radiator support. Easy upgrade. Low on the list for us at this point.