I do not know for Germany, but for Belgium, if you register the AVIC-F920 on the pioneer site, you get a free suscription for POICON
Then you install the PIOBASE software and you can install the speed camera's (called black spots in the radio)
It uses the micro SD card to install special POI on the radio
Check the support section on the pioneer site, then see software update...
You could try to register in the Belgian site (pioneer.be) Since in Germany they blocked this free service