NAVI- update, taigo on VW- page not to be found- alternative possible?

Good morning in the round after the dealer has rejected an update for my Navi (“we can’t do that”) I have again occupied myself with the download page of VW. As before the taigo is not listed here – there are several other vehicles with the entertainment system (“discover media”, as it is installed in my taigo r-line. Can I go here safely to another vehicle (e.g. t-cross) with the system to load and play the data via USB stick? Thanks in advance and nice weekend from East Friesland