Hello users!

I brought my wife a nuvi 1490 TV for christmas and...I want to add maps.
I have a 8GB sd card formated as FAT32.
What I want to know is what name do I have to give the "FOLDER" on the card.
I have a Garmin dakota 20 with mulipule maps on the card,that works fine with just using "Garmin" as the folder name.
But the Nüvi isnt that simple,or is it?
I took me a bit of reasearch just to find the ("System" folder, which is a hidden system folder) where the maps are installed on the internal memory.
I need a tutorial to learn how to add maps to the sd card.

Thanks redplanet12345