I am trying to get my Garmin Bluechart G2 onto a micro sd card with no luck. The img is 4.1gb so I am not able to load it onto a fat32 formatted card. So I tried formatting at NTSF and was able to put it on my 16gb card. But my gpsmap 76csx would not see it. I cant use homeport to select map sections to transfer over to my gps. Is there anyway to get the Bluechart g2 onto my gpsmap 76csx?