[. . . ] Install this unit away from hot places such as near the heater outlet. Optimum performance is obtained when the unit is installed at an angle of less than 60°. [. . . ] If you do not plan to detach the front panel, the front panel can be fastened with the supplied screw. This unit can be properly installed either from "Front" (conventional DIN front-mount) or "Rear" (DIN rear-mount installation, utilizing threaded screw holes on the sides of unit chassis). 2 Insert the supplied extraction keys into both sides of the unit until they click into place. If there is enough space, use the mounting sleeve that came with the vehicle. 1 Determine the appropriate position where the holes on the bracket and the side of the unit match. When installing this unit in a vehicle without an ACC (accessory) position on the ignition switch, failure to connect the red cable to the terminal that detects operation of the ignition key may result in battery drain. When this unit is on, control signals are sent through the blue/white cable. Connect this cable to the system remote control of an external power amp or the vehicle's auto-antenna relay control terminal (max. If the vehicle is equipped with a glass antenna, connect it to the antenna booster power supply terminal. Never connect the blue/white cable to the power terminal of an external power amp. Ground cables for this unit and other equipment (especially, high-current products such as power amps) must be wired separately. If they are not, an accidental detachment may result in a fire or malfunction. [. . . ] If they are not, an accidental detachment may result in a fire or malfunction. 12 ISO connector In some vehicles, the ISO connector may be divided into two. [. . . ]