Get into your car, push the Nav button, then the Option button on your controller. Scroll down to the last item in the menu called “Navigation System Version“. It will display the currently installed maps. For example: Road Map Europe Premium 2014-1. In this case the car needs the PREMIUM map version. No other version will work on this car (MOTION, MOVE, NEXT etc.) so make sure you choose the right version for your car. All you need is a USB stick to copy the purchased map files. You will receive instructions on how to copy and update.