Technical Talento 2019: Update Navi maps

[Nabster]

Hi,

I have Talento, and I have original Navi 7''. But I have only Belgian maps. Is there any option, where find different maps and update system? I found website Mopar and I tried registered. But still loading... Also I found page Naviextras, where is possible, maybe, download or buy maps, but I don't know Brand of this navi.

Do you know Brand this navi?
Do you know, where download or buy maps for Czech republic?

Thank's.