SMEG+ RNEG WipNav ... Gone lost here :bang:

Hi guys,

I own a 2015 C4 GrandPiccasso. Unfortunattely, it does not come with Israel maps (that's where I live).
Originally, the unit arrived with SMEG5.1.F.R.4
Today I upgraded it to SMEG 5.4.B.R8 that still does not have the maps of Israel.

I was trying to dig a little and see if there's a solution to it...
I thought that this navigation system is based on some other famous nav software and if that was the case I guess I was able to "craft' or match the Israel maps into my car.
But - I cannot seem to find what navigation software that is ..
I tought Wipnav - but couldn't find anything by that name.. also, during my searches came up RNEG.. is it something parallel to SMEG?

If anyone has a lead' I'd live to try it ...

Thanks,
Gil