Quote Originally Posted by warblade52 View Post
I added all available maps for CityXplorer in the forums into one file and put them in SD card in Nuvi 3790 as fourth map named gmapprom.img
Nuvi sees them as CN Europe NT 2010.10,CN Russia NT 2011.10, CN Europe NT 2010.20,CN North America NT 2011.10,CN Europe NT 2011.10,CN Europe NT 2011.20, CN Brazil NT 2011.30
Since I cannot test them in all these cities I do not know how they will react.
USE MAP FOLDER ON SD CARD NOT GARMIN

I used singe files.
Beauty with the nuvi 3790 is that he reads img files. Seems that name is not of much importance. I used, for example, Amsterdam_2010_20.img then rename it to CityXplorer_Amsterdam_2010_20.img and both work. Must be with UNL file with the same name, of course or use unlocked images.
You can do this with the rest of the map, Europe, America, Mexico ... Here is my list from the SD card:

EuroPlus.img
Australia.img
Australia_3D.img
NorthAmerica_2011_30_3D.img
NorthAmerica_2011_30.img
CityXplorer_Amsterdam_2010_20.img
CityXplorer_Amsterdam_2010_20.unl
CityXplorer_Baltimore_2011_10.IMG
CityXplorer_Baltimore_2011_10.unl
CityXplorer_Berlin_2011_20.img
CityXplorer_Berlin_2011_20.unl
CityXplorer_Budapest_2011_10.IMG
CityXplorer_Budapest_2011_10.unl
CityXplorer_CotedAzur_2011_20.img
CityXplorer_CotedAzur_2011_20.unl
CityXplorer_Firenze_2011_20.IMG
CityXplorer_Firenze_2011_20.unl
CityXplorer_Frankfurt_2011_30.img
CityXplorer_Madrid_2011_10.img
CityXplorer_NewYorkCity_2011_10.img
CityXplorer_NewYorkCity_2011_10.unl
CityXplorer_Oslo_2010_10.img
CityXplorer_Oslo_2010_10.unl
CityXplorer_Paris_2011_10.img
CityXplorer_Paris_2011_10.unl
CityXplorer_Praha_2010_10.img
CityXplorer_Praha_2010_10.unl
CityXplorer_RiodeJaneiro_2011_30.img
CityXplorer_RiodeJaneiro_2011_30.unl
CityXplorer_Roma_2011_10.img
CityXplorer_Roma_2011_10.unl
CityXplorer_SaoPaulo_2011_30.img
CityXplorer_SaoPaulo_2011_30.unl
CityXplorer_StPetersburg_2011_10.img
CityXplorer_StPetersburg_2011_10.unl
CityXplorer_Venezia_2010_10.img
CityXplorer_Venezia_2010_10.unl
CityXplorer_Wien_2011_20.unl
CityXplorer_Helsinki_2011_10.unl
CityXplorer_Krakow_2010_10.unl
CityXplorer_Madrid_2011_10.unl
CityXplorer_Moscow_2011_10.img
Mexico.img
CityXplorer_Milano_2011_10.img
CityXplorer_Milano_2011_10.unl
CityXplorer_Frankfurt_2011_30.unl
CityXplorer_Moscow_2011_10.unl
Wien_2011_20.img
CityXplorer_Wien_2011_20.img
CityXplorer_Helsinky_2011_10.IMG
CityXplorer_Krakow_2010_10.img

Result is that when you update maps you need to create only one map, not all of them again and again.

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THIS WORKS ONLY FROM THE MAP FOLDER NOT GARMIN!!!