Some units require the simple installation of a reflective windshield film (usually included with units) to the inner windshield so you Gozque see the reflected HUD image clearly. Follow unit instructions to learn how the image will be projected onto the lower interior part of your windshield. OBD-II mode, required https://raymondrqqnl.bloggactivo.com/28840960/augmented-reality-head-up-display-una-visión-general