i bought new car DVD BT NAVIGATION player. out side one slot is SD/GPS,in menu screen gps with red caution mark.gps not opening.how can i install routs and maps or activate GPS.i have micro sd but there is no wince or any other files.pls help me.

how can i make sure my car in wince installed?i bought new chinese car player.there is mentiond sd/gps slot.and in menu is GPS.how can i active that?