Hi Kenwood DNX5240BT doesnt have sd card slot can only update with a CD, pre-installed version is Europe NT 2009. What my question is whether there is a special version for Kenwoods only or anything can be used to upgrade. when i asked garmin, wot they said was only 2010.10 is released for kenwood and it has to be the one with this part number 010-11220-01.