TomTom user, today you could do download the Darth Vader voice into your GPS navigation device. There will a lot of voices of Lord Vader commands which will be set-up as your voice guide to the Dark Side. Not just that, you will also get Obi-Wan tought and Light saber as a plus. To download the content, TomTom already give a voice sample and you will be charged for $13 for each language pack. TomTom not only offers the Darth Vader voice because there will the C-3PO voice pack in June and Yoda voice in July which will also available to download.

Download here