[. . . ] Consult with your dealer if installation requires drilling of holes or other modifications of the vehicle. Do not install this unit where: -- it may interfere with operation of the vehicle. [. . . ] Insert the supplied extraction keys into both sides of the unit until they click into place. Use either truss screws (5 mm × 8 mm) or flush surface screws (5 mm × 9 mm), depending on the shape of screw holes in the bracket. Control signal is output through blue/white cable when this unit is powered on. If the vehicle is equipped with a glass antenna, connect it to the antenna booster power supply terminal. Never connect blue/white cable to external power amp's power terminal. This cable and other product's ground cable (especially, high-current products such as power amp) must be wired separately. Otherwise, fire or malfunction may result if they are accidentally detached. Cord function may differ according to the product, even if cord color is the same. When connecting this system, be sure to check all manuals and connect cords correctly. When this unit is installed in a vehicle without ACC (accessory) position on the ignition switch, red cable must be wired to the terminal that can detect the operation of the ignition key. ISO connector Note: In some vehicles, the ISO connector may be divided into two. Yellow/black If you use an equipment with Mute function, wire this lead to the Audio Mute lead on that equipment. [. . . ] -- Do not pass the yellow cable through a hole into the engine compartment to connect to a battery. -- Never cut the insulation of the power cable of this unit in order to share the power to other equipment. [. . . ]