22 EnglishCY-PA4003U/PA2003U/PAD1003U 23 EnglishCY-PA4003U/PA2003U/PAD1003UMounting the UnitCaution Never mount the unit in any of the following locationsto avoid damage due to overheating;• Near the heater port.• Places like the dashboard or rear deck, where it maybe exposed to direct sunlight. Do not mount the unit near the door, where it couldbe exposed to rain. You run the risk of interfering with the mounting orcausing damage by drilling into the gas tank, a wiringharness, or other component. Keep a safe distance between the unit and otherelectronic equipment. If this unit is operated at a high output continuously,the upper side of the unit will get very hot. Do nottouch it nor place anything on top of the unit. When a short circuit occurs, such as in the speakeroutput terminal, etc. the overload protection circuitwill operate. This circuit protects the power amplifi erfrom further damage when a short circuit occurs.Operation will temporarily stop. In this case, checkthe cause of the short-circuit and if the problem isfi xed, normal operation will resume. Since the power amplifi er has a very large output, theunit should be installed in the trunk of your car. Do not install this unit under a carpet, otherwise theunit may fail because of immature heat dissipation. Use the spacer included when installing the unit sothat the fan and air hole on the base side of the unitare not covered. If the fan and air hole on the base side of the unit arecovered, the unit will become extremely hot and mayfail.Before Mounting the Unit1 Make the temporary connections.2 Confi rm the proper operation of the unit.Confi rm the proper connection and setting, and noblowout of the fuses.3 Confi rm after the installation of the unit that the sparetires, the jack, the tools, etc. can be picked up withoutobstruction.Install the unit to a metallic portion of the carSince the power amplifi er has a very large output, theunit should be installed in the boot of your car. Tapping Screw(5 mm20 mm) Plain Washer (5 mm)Drill four holes3.5 mmMetallic panel(thickness: morethan 15 mm {5 /8})321 mm{1211 /16}178 mm{71 /16}InstallationPreparationCaution Please follow the laws and regulations of yourprovince or country for installation of the unit. We strongly recommended you to wear gloves forinstallation work to protect yourself from injuries Be sure to grip both sides of this unit securelybefore attempting to move it.Since this unit is quite heavy, the unit may fall downand this can lead to an accident or injury. Disconnect the cable from the negative () batteryterminal (see caution below).Caution If your car is equipped with air bag and/or anti-theft systems specifi c procedures may be requiredfor connection and disconnection of the battery toinstall this product. Before attempting installation of this electroniccomponent contact your car dealer or manufacturerto determine the required procedure and strictlyfollow their instructions. FAILURE TO FOLLOW THE PROCEDURE MAYRESULT IN THE UNINTENDED DEPLOYMENT OFAIR BAGS OR ACTIVATION OF THE ANTI-THEFTSYSTEM RESULTING IN DAMAGE TO THE VEHICLEAND PERSONAL INJURY.Installation Hardware(For Installation)No. Item Diagram Qty. Tapping Screw(5 mm20 mm)4 Plain Washer(5 mm)4 Allen wrench 1Installation Hardware(For Wiring)Note: For power connection, use the optional power cordspecially designed for use with Panasonic car-audio/AV system. Use only the supplied screws for installation. If partsare missing please consult with your Panasonic dealerfor advice.No. Item Diagram Qty. Speaker inputconnector2 Terminal coverfor short-circuitprevention2 CY-PA4003U: 2 (1 for front speaker, 1 for rear speaker)CY-PA2003U, CY-PAD1003U: 1 (for left/right speaker) InstallationHardware (For Installation)No. Item Diagram Qty. Spacer 4 Tapping Screw(5 mm40 mm)4 Tapping Screw(5 mm40 mm) Plain Washer (5 mm)Drill four holes3.5 mmMetallic panel(thickness: more than 15 mm {5/8})291 mm{111 / 2}178 mm{71 /16} SpacerNote: If you wish to install the unit without using the spacerincluded, drill holes in the Metallic panel etc so that thefan and air holes on the base side of the unit are notcovered.Base side of CY-PAD1003U:Fan Air hole