igo primo mazda built in

Hi i have an igo primo built in in a mazda car. I manage to arrange the data.zip, speedcam.zip and skin.jci.mazda to show new icons and voices. The idea is that i will like to add the speed for a every cam but even if I add new code to the data.zip and the ini inside this thing is not working. Could someone help me about this issue?
Thanks a lot in advance