1. Firstly, please download HUD based application from the itunes or google play app stores. To be more productive try these keywords from searching: “HUD Navigation”, “GPS HUD” or “Head Up Display”
2. Choose an appropriate place on the car dashboard and put the non-slip mat(4) on the place you want.
3. Tear off the protective film from the two side of original glass(1)
4. Put the universal smartphone holder(3) on the non-slip mat(4)
5. Take off the protectiove film on the surface(2) and put the phone on the surface of HUD holder
6. Adjust the original glass (1) to appropriate angle so you can see the APP reflection correctly(usually visual angle is 45°)