2004 Honda Civic Stereo Head Unit Connections

Shown below are the pins wires coming out of the factory STEREO HEAD UNIT

2004 Honda Civic Stereo Head Unit Connections

Group A Pins(for CDC Hanger Accessory)

Pin B1 Black Wire CD Hanger Accessory
Pin B2 Red Wire CD Hanger Accessory
Pin B3 no connection CD Hanger Accessory
Pin B4 Brown Wire CD Hanger Accessory
Pin B5 Blue Wire CD Hanger Accessory
Pin B6 no connection CD Hanger Accessory
Pin B7 no connection CD Hanger Accessory
Pin B8 Black Wire CD Hanger Accessory
Pin B9 White Wire CD Hanger Accessory
Pin B10 Black Wire CD Hanger Accessory
Pin B11 no connection CD Hanger Accessory
Pin B12 Yellow Wire CD Hanger Accessory
Pin B13 Green Wire CD Hanger Accessory
Pin B14 no connection CD Hanger Accessory

Group B Pins (Audio Wire Connections)

Pin 0 Antenna Cable Antenna Module
Pin A1 Yellow Green Wire Switch Out Antenna Module
Pin A2 Yellow Red Wire Switch Ignition Fused Voltage Supply
Pin A3 no connection
Pin A4 no connection
Pin A5 Pink Wire RR (+)
Pin A6 Blue White Wire RL (+)
Pin A7 Green Yellow Wire FR (+)
Pin A8 Green Black Wire FL (+)
Pin A9 Red Black Wire Illumination
Pin A10 White Red Wire Battery power
Pin A11 no connection
Pin A12 no connection
Pin A13 no connection
Pin A14 no connection
Pin A15 Blue Yellow Wire RR (-)
Pin A16 Blue Black wire RL (-)
Pin A17 Grey Red FR (-)
Pin A18 light Green FL (-)
Pin A19 Red Wire Ilummination (-)
Pin A20 Black Wire GROUND

If you need a detailed stereo wiring diagram, please contact ATS

Legend

LF left front
LR left right
RR right rear
SPKR Speaker
GROUND ground supply connection
(+) positive wire connection
(-) negative wire connection





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