30 EnglishCY-PA4003U/PA2003U/PAD1003U 31 EnglishCY-PA4003U/PA2003U/PAD1003UWiring Speaker Connections with RCA cordExample: 2 channel Input SystemHead UnitPower amplifi erPRE-OUTLeft (min. 4 )Right (min. 4 )Battery Lead (Yellow)To the car battery,continuous 12 V DC.External Amplifi er Control Lead(Blue/white stripe)To Head Unit’s external amplifi er controlpower lead.Ground Lead (Black)To a clean, bare metallicpart of the car chassis.SPEAKERS INPUTNot used.OUTPUTWhen connecting anotherpower amplifi er:INPUT INPUT SELECTLINERCA cord(option)L (White)L (White)L (White) R (Red)RCA cord(option)R (Red)R (Red)Speaker Connections with SPEAKERS INPUT ConnectorsExample: 2 channel Input SystemINPUT(Not used.)Head UnitBattery Lead (Yellow)To the car battery, continuous12 V DC.Ground Lead (Black)To a clean, bare metallic part of thecar chassis.External Amplifi er Control Lead(Blue/white stripe)To Head Unit’s external amplifi er control power lead.Left (min. 4 )Right (min. 4 )SPEAKERSINPUTSpeaker OutputINPUT SELECTSPEAKERS Speaker input connectorSpeaker lead’s color ChannelWhite Left ()White/black stripe Left ()Gray Right ()Gray/black stripe Right ()Ground leadNote for the ground lead of the speaker inputconnector: Connect to the Head Unit’s earth. Do not allow the speaker output and ground toshort out. Doing so will cause damage to this unit.