How to add additional (officially unsupported) maps to Mazda 3 MDZ Navigation (Navteq)

Hi,

I need to add additional unsupported maps to Mazda 3 Navigation System. For example, maps for Central America Countries.
I have the map and poi files, and I already loaded and tested the files in iGO Primo navigation system on Mio S665 GPS, but the Mazda GPS does not recognize it.

Costa_Rica_HERE_2015.Q4_151207.poi
Costa_Rica_HERE_2015.Q4_151215.fbl
Guatemala_HERE_2015.Q4_151207.poi
Guatemala_HERE_2015.Q4_151215.fbl
Nicaragua_HERE_2015.Q4_151207.poi
Nicaragua_HERE_2015.Q4_151215.fbl
Panama_HERE_2015.Q4_151207.poi
Panama_HERE_2015.Q4_151215.fbl

Any help or suggestion to test will be appreciated,

Thanks,