I was interested to see that your car has a pair of horns. Mine was delivered with one horn and the cable for the other taped up. I suspected that, with the fitting of the aircon, the cable was a little short so that instead of fitting a short extension or re-routing the cable they simply did not fit the horn

I did put it on a small list of items that were QC problems that I gave to the factory on my last visit but since I had now fitted a pair of FIAMMs I did not follow up on it.