My wife owns a 2010 Fiat 500C (convertible for sake of clarity) and we would like a confirmation that the aerial is actually in the windscreen itself, and not any external fittings, nor any upgrade?

My wife is in dispute with the local manager of a windscreen company regarding this, as she is not impressed with their service. Despite her instructions to them that her car was a convertible, the fitter arrived with the windscreen for a standard Fiat 500. The fitter freely admitted this was wrong in the first instance and promptly ordered the correct one. He fitted this 2 days later.