I was doing some research today on the fords parts website. it looks as though the GPS components are identical parts from the non-nav to the nav systems, the 201A and the 202A,/ limited. Part no 10E893 Appears on both the xlt, and limited. This proves that there is not a hardware difference, but a software difference. So there is still hope that we might be able to get the nav system unlocked / loaded at the dealer. Just thought i would share my findings.