Connection/Installation80Ñ Wiring harness (Accessory 1)connector function guidePin Color and functionA-4 Yellow BatteryA-5 Blue/White [2] Power ControlA-6 Orange/White DimmerA-7 Red Ignition (ACC)A-8 Black Earth (Ground) ConnectionB-1/ B-2 Purple (+) / Purple/Black (–) Rear RightB-3/ B-4 Gray (+) / Gray/Black (–) Front RightB-5/ B-6 White (+) / White/Black (–) Front LeftB-7/ B-8 Green (+) / Green/Black (–) Rear Left*Speaker Impedance: 4-8 Ω#WARNING for Connecting the ISOConnectorThe pin arrangement for the ISO connectors dependson the type of vehicle you drive. Make sure to makethe proper connections to prevent damage to theunit. The default connection for the wiring harness isdescribed in (1) below. If the ISO connector pins are setas described in (2), make the connection as illustrated.Please be sure to reconnect the cable as shown (2)below to install this unit to the Volkswagen vehicles etc.(1): Default settingThe red (A-7 pin) of the vehicle’s ISO connector is linkedwith the ignition, and the yellow (A-4 pin) is connectedto the constant power supply.Red (Ignition cable)Yellow (Battery cable) Yellow (A-4 pin)Red (A-7 pin)Unit Vehicle(2)The red (A-7 pin) of the vehicle’s ISO connector isconnected to the constant power supply, and theyellow (A-4 pin) is linked to the ignition.Red (Ignition cable)Yellow (Battery cable) Yellow (A-4 pin)Red (A-7 pin)Unit Vehicle++++When connecting to an external amplifier,connect its ground wire to the car’s chassis toavoid damaging the unit.White/BlackGray/BlackGreen/BlackPurple/BlackSpeaker impedance: 4-8 ΩPurpleGreenGrayWhiteTo mid range leftspeakerSubwoofer PreoutTo mid range rightspeakerMid Range PreoutTo tweeter left speakerTweeter PreoutTo tweeter rightspeakerPower amplifier(optionalaccessory)RCA Cable(Sold separately)InputSpeakerPreoutNOTE• For speaker system setup, see 3 way speakersystem setup (P.65).• For speaker setup and crossover setup, seeControlling Audio (P.63).• For how to connect speaker wires to terminalsother than speaker terminals and Preoutterminals, see Connecting the system andexternal components (P.81) and Connectingwires to terminals (P.79).Ñ 3 way speaker system setup