English | 23Connector Function GuidePin Numbers forISO Connectors Cable Colour FunctionsExternal PowerConnectorA-4 Yellow BatteryA-5 Blue/White Power ControlA-7 Red Ignition (ACC)A-8 Black Earth (Ground)ConnectionSpeakerConnectorB-1 Purple Rear Right (+)B-2 Purple/Black Rear Right (–)B-3 Gray Front Right (+)B-4 Gray/Black Front Right (–)B-5 White Front Left (+)B-6 White/Black Front Left (–)B-7 Green Rear Left (+)B-8 Green/Black Rear Left (–)2WARNINGConnecting the ISO ConnectorThe pin arrangement for the ISO connectors depends onthe type of vehicle you drive. Make sure to make the properconnections to prevent damage to the unit.The default connection for the wiring harness is described in1 below. If the ISO connector pins are set as described in 2or 3, make the connection as illustrated.Please be sure to reconnect the cable as shown 2 below toinstall this unit to the Volkswagen vehicles etc.1 (Default setting) The A-7 pin (red) of the vehicle’sISO connector is linked with the ignition, and the A-4 pin (yellow) is connected to the constant powersupply.Unit VehicleA-7 Pin (Red)A-4 Pin (Yellow)Ignition cable (Red)Battery cable (Yellow)2 The A-7 pin (red) of the vehicle’s ISO connector isconnected to the constant power supply, and theA-4 pin (yellow) is linked to the ignition.Unit VehicleA-7 Pin (Red)A-4 Pin (Yellow)Ignition cable(Red)Battery cable(Yellow)3 The A-4 pin (yellow) of the vehicle’s ISO connectoris not connected to anything, while the A-7 pin(red) is connected to the constant power supply(or both the A-7 (red) and A-4 (yellow) pins areconnected to the constant power supply).Unit VehicleA-7 Pin (Red)A-4 Pin (Yellow)Ignition cable (Red)Battery cable (Yellow)⁄• When the connection is made as in 3 above, the unit’spower will not be linked to the ignition key. For that reason,always make sure to turn off the unit’s power when theignition is turned off.To link the unit’s power to the ignition, connect the ignitioncable (ACC...red) to a power source that can be turned onand off with the ignition key.