good evening Ladies and Gentelmen,
i m a new member and i m very happy to be among you
i need your help
i have a nuvi 1480 bought from canada last year.i live now in Morocco and i want to have the moroccan map on my precious device.
please fellows you are my lonliest left chance
waiting impatiently for your response
free-iron

The easiest way to add a new map, is to copy an unlocked IMG version on a µSD card, in folder Garmin named gmapsupp.img or in folder Map named [any name].img.

You have to look for City Navigator Middle East and Northern Africa NT 2012.40,
e.g. this:
CNMENA_2012.40_IMG_UL from http://www.navitotal.com/showthread.php?8552-City-Navigator-Middle-East-amp-Northern-Africa-NT-2012.40&p=66792#post66792

thank you very much fellow .i will try it soon.all i need now is to know what file i have to download ( ex : mapsource , image or 3d ...etc ) and how to fix it on the sd card ex : how can i use the code )
again and again i m so grateful and i send you very best wishes from morocco