Kenwood DDX8901HD Instruction Manual

60CONNECTION/INSTALLATIONBefore installing the unitV WARNING• If you connect the ignition wire (red) and thebattery wire (yellow) to the car chassis (ground),you may cause a short circuit, that in turn maystart a fire. Always connect those wires to thepower source running through the fuse box.• Do not cut out the fuse from the ignition wire (red)and the battery wire (yellow). The power supplymust be connected to the wires via the fuse.V Precautions on installation and connection• Mounting and wiring this product requiresskills and experience. For best safety, leave themounting and wiring work to professionals.• Make sure to ground the unit to a negative 12 VDC power supply.• Do not install the unit in a spot exposed to directsunlight or excessive heat or humidity. Also avoidplaces with too much dust or the possibility ofwater splashing.• Do not use your own screws. Use only the screwsprovided. If you use the wrong screws, you coulddamage the unit.• If the power is not turned on (“Miswiring DC OffsetError”, “Warning DC Offset Error” is displayed),the speaker wire may have a short circuit orhave touched the chassis of the vehicle and theprotection function may have been activated.Therefore, the speaker wire should be checked.• If your car’s ignition does not have an ACCposition, connect the ignition wires to a powersource that can be turned on and off with theignition key. If you connect the ignition wire to apower source with a constant voltage supply, suchas with battery wires, the battery may be drained.• Only for DDX8901HD/DDX7701HD/DDX7071BT:If the console has a lid, make sure to install theunit so that the monitor panel will not hit the lidwhen closing and opening.• If the fuse blows, first make sure the wires are nottouching to cause a short circuit, then replace theold fuse with one with the same rating.• Insulate unconnected wires with vinyl tape orother similar material. To prevent a short circuit,do not remove the caps on the ends of theunconnected wires or the terminals.• Connect the speaker wires correctly to theterminals to which they correspond. The unit maybe damaged or fail to work if you share the [wires or ground them to any metal part in the car.• When only two speakers are being connected tothe system, connect both connectors either tothe front output terminals or to the rear outputterminals (do not mix front and rear). For example,if you connect the ] connector of the left speakerto a front output terminal, do not connect the [connector to a rear output terminal.• After the unit is installed, check whether the brakelamps, blinkers, wipers, etc. on the car are workingproperly.• Mount the unit so that the mounting angle is 30°or less.• Do not press hard on the panel surface wheninstalling the unit to the vehicle. Otherwise scars,damage, or failure may result.• This unit has a cooling fan to decrease theinternal temperature. Do not mount the unitin a place where the cooling fan of the unit isblocked. Blocking these openings will prevent thecooling of the internal temperature and result inmalfunction.Cooling fanV CAUTIONInstall this unit in the console of your vehicle.Do not touch the metal part of this unit during andshortly after the use of the unit. Metal parts such asthe heat sink and enclosure become hot.R Supplied accessories for installation1 Wiring harness x 12 Trim plate x 13 Extension wire x 14 Extraction keys x 25 Flat head screws (M5 x 7 mm) x 66 Round head screws (M5 x 6 mm) x 67 Steering Remote cable x 1*8 Microphone x 19 Fixture for HDMI/MHL connector x 10 Screws for the fixture (M2.6 x 6 mm) x 1* Only for DDX7071BT.