Changing voices on a Medion GoPal PNA 210T

[cranialscratch]

OK. So my mother bought a cheapie for my dad. It looks like it can do the job. The question is, my dad's expectations have been set by the Tom Tom that I have. I used this forum to work out how to change the voices on Tom Tom. Now I want to change the voices on the Medion. Any ideas?

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