CQ-R221W15ENGLISH12Installation GuidePreparation Before installation, check the radio operation with antenna and speakers. Disconnect the cable from the negative (–) battery terminal (see caution below). Unit should be installed in a horizontal position with the front end up at a convenient angle, but notmore than 30°.Caution:For installation to cars with trip or navigational computers, all electronic memory settingspreviously registered in the computer will be lost when the battery terminal is disconnected. Forthis type of car, battery could not be disconnected. Therefore, extra care should be taken toprevent short circuitting.In-dash InstallationInstallation OpeningIn-dash installation can be done if the car’sdashboard has an opening for this unit as shown inFig. 1. The car’s dashboard should have athickness of 4.5 mm - 6 mm in order to make theinstallation of the unit.Installation PrecautionsThis equipment, if possible, should be installed by a professional installer.In case of difficulty, please consult your nearest authorized Panasonic Service Center.1. This system is to be used only in a 12-volt, DC battery system (car) with negative ground.2. Follow the electrical connection on page 20 carefully. Failure to do so may result in damage to theunit.3. Connect the power lead after other connections are made.4. Be sure to connect the YELLOW lead to the positive terminal (+) of the battery or fuse block (BAT)terminal.5. Insulate all exposed wires to prevent short circuitting.6. Secure all loose wires after installing the unit.7. Please carefully read the operating and installation instructions of the respective equipmentbefore connecting it to this unit.182 mm53 mmFig. 1Supplied HardwaresNo. 1111ItemMounting CollarHex. Nut (5 mm φ)Rear Support StrapTapping Screw(5 mm φ x 16 mm)Diagram Qty1 Mounting Bolt (5 mm φ)No. Item Diagram Qty1111 Power ConnectorDismounting PlateRemovable FacePlate CaseRemote controlCar AudioCar AudioBAND/DISC UPBAND/DISC UPPRG(ATT)(ATT)PWRVOLMODEMUTETRACKTUNE1 Lithium battery