yep, tested today and the car didn't even read or recognized the sd card. Did nothing when I put it in. I bought a micro sd card and used an sd card adapter to put it in my car. because micro sd was too small.I think the program is in all of them. My preferred came with the card as a $450 option according to the window sticker
So yes, I need that program in the card. Then I can do the map thing. Have any idea where I can get that program?