blacked03ls
Active LVC Member
After doing research it is true that you can upgrade your NAV. system with a a few discs. The only catch is your NAV unit has to be in certain digits. Before returning these discs back to the manufacturer (I have connects at a ford dealership) i actually burned them for others. It was a real pain to get everything needed. The seriel # you need is on the back of the NAV. unit. If it was made late enough you will be fine. I have full instructions and the discs to do the process. PM me if you would like more information or are intrested. BTW all the bs was worth the crystal sound of sirius 
