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I own the same exact year of Edge. Mine is the SEL with the upgrades added though to match the Sport model with the lower price tag. Salesman help me "cheat" the ma on that one.
They are great vehicles!
On the navigation, If you have the A4 card, you are good. There is an update that can be done using a flash drive that you download from Ford. Use your VIN and go to this site CLICK HERE and register. You can get your printout from the vehicle at this site as well. You'll see that in the SYNC diagnostics.
Once you register, there is a section that will let you know if the update was done on the system. It fixed a lot of issues with the SYNC system (black screen, radio stations jumping, phone diconnecting, etc) and if it shows that it is still available, you insert a flash drive into the PC with nothing on it, download the file per the instructions, then insert it into the USB port inside the storage box between the seats, and then in the navigation you select the gears, then the diagnostics, then software apps, and it will update from there.
Nearly all the shops and the owners have done this becasue it was a headache. I did mine right away because of how annoying the black screen was and the radio stations jumping around. Now if I have an issue, I will unplug the gray plug that is next to the fuse box and wait 5 seconds, then plug it back in. That resets it like a computer. I still have to do that every 6 months or so, but that is all I have to do.
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