[. . . ] Use only the supplied mounting hardware for safe and secure installation. Before detaching the front panel, be sure to press the OFF button first. Then press the RELEASE button to open up the front panel, and detach the panel by pulling it towards you as illustrated. [. . . ] Then press the RELEASE button to open up the front panel, and detach the panel by pulling it towards you as illustrated. If there is alternator noise (a whining sound when raising engine speed), ground the master unit by connecting it to a metal point of the car with the supplied chassis ground cord 5. Connect the ground cord to the master unit with part 2 as shown in the illustration. Note If you connect an optional power amplifier and do not use the built-in amplifier, the beep-tone will be disabled. Connect the unit to the power supply of the car after all other connections are complete. Connect pin 4 or pin 7of the unit's power connector to a free car circuit rated higher than the unit's fuse rating. If you connect this unit in series with other stereo components, the car circuit they are connected to must be rated higher than the sum of the individual components' fuse rating. Do not connect any active speakers (with built-in amplifiers) to the speaker terminals of the unit. Check your car's power connector diagram to make sure the connections match correctly. Before connecting the unit the car`s power supply, be sure to match the position of the jump connector to the car`s pin order. If the power connector of your car does not match the connector on the unit, use the supplied connectors 7 and 8. If you have any questions and problems connecting your unit that are not covered in this manual, please consult the car dealer. Check the pin position of the power connector of the car with the table on the right. If positions 4 and 7 are reversed, remove the jump connector and shift it to the rightmost position as shown in the illustration. [. . . ] If you have any questions and problems connecting your unit that are not covered in this manual, please consult the car dealer. Check the pin position of the power connector of the car with the table on the right. If positions 4 and 7 are reversed, remove the jump connector and shift it to the rightmost position as shown in the illustration. [. . . ]