When installing a new map on NTG5*1 and NTG5*2 systems you will need the USB/Map Disk set and a map pin code.. It is the PIN code that is the licence for the map, thus preventing fraudulent repeat installation of a map disk on many vehicles. This special order item is for the PIN code for Africa and Middle Easy maps. You must purchase the map disk install set separately (which can be used on multiple cars, but the PIN is different for each car).