the SMEG Audio comes without navigation, but that's not a SMEG+iV2.
According the my famous sticky, the DS3 came with a RT6 'til MAy 2015.
Since June 2015 it sports a SMEG+IV2.
Is your unit really that new?
What might be the different SMEG+IV2s your talking about? Pls. provide more info.
So I suggest you photograph the unit and post the pics here. Pls also shoot the label of the unit, if you like.
The unit has to be hardcoded to fully function in your car, did you know that?