I purchased a 3rd party map (actually 4 files) and unlocked them in Basecamp. I can see them and use them there. So far so good.
Then I downloaded the maps onto my Garmin. But something strange happens: Only 2 of the 4 maps are available to select as map on the Garmin Zumo XT and it has gone at the expense of one of the City Navigator maps which has disappeared.
Then I thought I only need one of the 4 maps mostly. So I de-installed the other three but I still do not see the map on my Garmin XT. The City Navigator maps are visible again.
Then I just copied the map manually onto the Garmin MAP directory on the Garmin XT. Now the map does appear on the Garmin XT but again at the expense of one of the City Navigator maps, which has disappeared.
Then I removed the map again and copied it to the MAP directory of the SD card in the Garmin XT. Again I do not see the map on the Garmin XT.
In the above Basecamp / mapinstall thinks the maps are correctly installed on the Garmin XT, I can just not select them on the Garmin XT under My maps.
There is no shortage of memory on the Garmin XT nor on the SD card.
So the only way I can use this third part map is by installing it manually into the MAP directory of the Garmin XT, but I effectively loose one of the City Navigator maps then. Obviously that is not what I want. I want to be able to select my third part map and all the maps that came with the unit, including the City Navigator maps.
It is almost like there is some sort of limitation in the number of maps that can be shown in My Maps on the Garmin XT.
Any suggestions what is going on here?
Many thanks!
