AX-ALOC648INSTALLATION INSTRUCTIONSWire Color & Function: The audio input wire colors are an EIAstandard for car stereo applications as follows:WHITE = LEFT Front (+) InputWHITE /BLACK = LEFT Front (-) InputGRAY = RIGHT Front (+) InputGRAY/BLACK= RIGHT Front (-) InputGREEN= LEFT Rear (+) InputGREEN/BLACK = LEFT rear (-) InputPURPLE= RIGHT Rear (+) Input,PURPLE/BLACK = RIGHT Rear (-) InputBLACK = Reference Ground (-)(REFERENCE GROUND OPTIONAL IF NOISE IS PRESENT)NOTE: Be sure that all audio input connections are polarized or inphase with each other. That is, the positive output wires from theaudio source need to be connected to the corresponding positiveinput wires of the AX-ALOC648. The same goes for the negativeaudio wires. Failure to do this will result in poor bass response andlow quality audio.Adjusting the AX-ALOC648 for maximum performance:After completing all of the necessary connections turn the AX-ALOC648 adjustment pots all of the way down by rotating themcompletely counter-clockwise. Now, turn the stereo system on andadjust the main volume control on the stereo to approximately 3/4maximum volume. Select one of the adjustment pots on the AX-ALOC648 and turn it slowly clockwise until you notice audio distor-tion and then stop. Turn the remaining pot to the same position asthe previously adjusted pot. The audio set-up of the AX-ALOC648 isnow complete and ready to be enjoyed.