Hello
I have a Garmin Nuvi 1490T. It's internal maps are USA, however, I want to add Australian maps that are accessible via a SD card so I can switch between them. I have downloaded the maps from (http://www.navitotal.com/showthread.php?10282-CN-Australia-amp-New-Zealand-NT-2013.20-NAVTEQ), and extracted the .IMG file to the SD card, however, the Garmin does not recognize the format. I'm wondering how I go about adding the Australian maps from a SD card?
I've tried the instructions from this post (http://www.navitotal.com/showthread.php?9026-step-by-step-replacing-internal-map-on-nuvi-1xxx-2xxx-and-3xxx) on an external drive.
Cheers,
Huffyrox