Depending on the specifications of your vehicle’s display audio, it may be possible to add a map navigation function and/or install an external device that can display video and various apps. There are also cases where you can add functions while keeping the original look. If you let us know your vehicle model, model year, and the features you want, we can advise you on whether it’s possible, the estimated cost, and the estimated installation period. For safety reasons, it is very dangerous to look at the screen while driving. Please use it within a range that does not interfere with driving. You can also consult with us separately about menus for improving sound quality.