Installing extra map Memory expansion TomTom GO PROFESSIONAL 6250 / Compatible memory card

Andrewbrown
Andrewbrown Registered Users Posts: 1
New Seeker
edited October 2019 in Map purchase & installation
I am going on holiday to the USA and want to purchase and install the USA map on my device (tt go professional 6250) but dont want to lose my truck map of europe.
How do I do this?

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