If you find a site today claiming to offer a "Navigon Exclusive" download for this specific voice,

Designed to infect your PC when you try to sync the files.

In the mid-2000s and early 2010s, the GPS industry was booming. Before Google Maps dominated our pockets, dedicated Navigon, TomTom, and Garmin units were the kings of the dashboard. During this era, a bizarre urban legend emerged that still circulates in obscure forums today: the existence of an "Adolf Hitler" voice skin for Navigon devices.