vortep wrote:Hello guys,
I have old Nuvi 660 with small SD card, I think around 2or 4gb, should i patch to use unlocked maps? I think to get bigger SD card maybe 16gb or 32gb.

Welcome to the forum, your device is deigned to use NT maps so I moved your post here.
It does not require patching to use unlocked maps.
Devices in the nüvi® 300, 600, and 5000 series can use an SD card larger than 2 GB, but will not be able to read files larger than 2 GB from the SD card. For more information, [Please Register or Login to download file]
So you will have to choose a region.

Hello - I'm new here!

I created the SDcard folders as specified in your instruction
D2504330A.jcv in K:\Garmin\JCV
and
gmap3d.img
gmapsupp.img
in K:\Map

but my FIAT Freemont 2013 - does not recognize them!

Where is my mistake?

ivingi wrote:my FIAT Freemont 2013 - does not recognize them!
Where is my mistake?

Uconnect in car head Unit do not follow the same file location ,look in your garmindevice.xml to see what file go where.
fiat-alfa-romeo-lancia/