My car has no data connection hardware. The navigation maps are updated by putting a USB stick in the music player and uploading files to the car. The dealer c

My car has no data connection hardware. The navigation maps are updated by putting a USB stick in the music player and uploading files to the car. The dealer charges about $200 to do it. It's probably possible for someone to do it on their own, but I don't drive enough to bother looking it up.