Thread: How Do I Install a Map on a 3590?

Well, you didn't need to search in other forums. You only had to read the other link i gave you: i.e. [Only registered and activated users can see links. ] which tells you the correct placement of the Map folder for anyname maps. [My 'ditto' after it in the post means that it's also 'same for 2xxx, 3xxx etc' as for the thread above it]

You quoted the poster in the other forum as writing this:

I believe the map naming flexibility on the newer units applies whether the map is placed in internal memory or micro SD card, as long as you put the file in the Map folder. I don't have one of these newer units to test with, so someone please correct me if this is wrong."

I tested your Map folder statement on my 2460LMT and it seems incorrect. A MAP folder on the Nuvi itself WILL NOT BE RECOGNIZED (at least on my 2460).

I created a folder named "Map" in the Garmin folder and copied a map named gmapsupp.img in it.
The map was not recognized.

I then moved the Map folder(with map) into the system folder, the 2460 did not recognize it.

It's wrong. He only needed to place the map with 'anyname' in a ROOT folder named Map. Instead he tried in nuvi:\Garmin\Map folder with the map named gmapsupp.img. However, gmapsup1 will work in the Map [root] folder as will anyname. Have a look at the GarminDevice.xml in the Garmin folder, it gives the paths. In all units from nuvi 1xxx-3xxx this 'any-naming' of img files works, but only as unit:\Map\*.img and sd:\Map\*.img.

I own a 2460 and 2x3590s. The paths are identical.

And this is also wrong in parts:

If your .img file is very large you can place it on a SD card, you can call it what you like as long as it's a .img file and placed in a folder called Map, ie SD:Garmin/Map, or you can remove the original "gmapprom.img" file and save it on your computer, and add yours.
You can add as many .img files to the system folder as long as they are renamed, just add a number to "gmapprom.img."

Not "SD:Garmin/Map". SD:\Garmin\Map i guess is what he means, anyway that won't work. It's SD:\Map [it needs to be a root folder, same as with the unit's Map folder].
And you can't add multiple maps to the unit's .System folder by just adding more numbers than 1 to gmapprom, only gmapprom and gmapprom1 are recognised, further naming such as gmapprom2 etc will be ignored.

I hope that clears it up for you.