[knt]

If it's DVD only based system then should be simple enough.

But, if it's HDD based then you'll most likely need someone who can generate key codes for the map and system you're using.

If you google you should find someone who can do it for you.

Might be cheaper, easier and more up to date just using the mobile phone apps.

 

[knt]

If it only uses DVD based system maps then if you want original try ebay/Amazon cheaper than dealers.

If you buy originals maybe ask the dealers if it'll work as I don't think the DVDs will be region locked.

If you buy backup version try asking the seller if it'll work.

The satnav system will be updated from DVD to use the new DVD maps.