Depending on the station's retention pplicy, there will have been a
station log recording of him speaking available for a while, but these
are not normally available to those outside the station and the
authorities. These were or area a legal requirement, but were or are
normally deleted after a year or so and the media re-used.
Have you asked the station management or station archivist about these?
Presenters would have only had access to their own recordings, and may
not even be aware they exist.
--
Tciao for Now!
John.