Title already says most.
I have a Medion GoPal P4440 wich has a very outdated map (2010)
The unit has a microSDcard-slot, RDS, and seems very capable. I update tomtom's "all the time", but I have no idea what to do with this unit. Of course the goal would be to make max use of all functions + an up to date Europe map.

What's the most smart thing to do?

Thanks in advance for any help