English | 11install the unit so that the faceplate willnot hit the lid when closing and opening.• If the fuse blows, first make sure the wiresaren’t touching to cause a short circuit,then replace the old fuse with one withthe same rating.• Connect the speaker wires correctly to theterminals to which they correspond. Theunit may be damaged or fail to work ifyou share the - wires or ground them toany metal part in the car.• After the unit is installed, check whetherthe brake lamps, blinkers, wipers, etc. onthe car are working properly.• Mount the unit so that the mountingangle is 30° or less.• Reception may drop if there are metalobjects near the Bluetooth antenna.(KDC-BT50U only)Bluetooth antenna unitFor Good ReceptionTo assure good reception, note thefollowing:• Communicate with the cell-phone withinthe line-of-sight distance of 10 m (30ft). The communication range becomesshorter depending on the surroundingenvironment. The communicationrange also becomes shorter when thereis an obstacle between this unit andthe cell-phone. The above maximumcommunication range (10 m) is notalways assured.• A broadcast station or walkie-talkielocated nearby can interfere withcommunication due to too strong signal.Connecting the ISO ConnectorThe pin arrangement for the ISO connectorsdepends on the type of vehicle you drive.Make sure to make the proper connectionsto prevent damage to the unit.The default connection for the wiringharness is described in 1 below. If the ISOconnector pins are set as described in 2,make the connection as illustrated.Please be sure to reconnect the cable asshown 2 below to install this unit to theVolkswagen vehicles etc.1 (Default setting) The A-7 pin (red) of thevehicle’s ISO connector is linked withthe ignition, and the A-4 pin (yellow) isconnected to the constant power supply.A-7 Pin(Red)A-4 Pin(Yellow)UnitVehicleIgnition cable(Red)Battery cable(Yellow)2 The A-7 pin (red) of the vehicle’s ISOconnector is connected to the constantpower supply, and the A-4 pin (yellow) islinked to the ignition.A-7 Pin(Red)A-4 Pin(Yellow)UnitVehicleIgnition cable(Red)Battery cable(Yellow)