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20 pin Honda Head unit CN701 proprietary connector layout
20 pin Honda Head unit CN701 proprietary connector
at the head unit

 

Non-Bose (2003-2004)

Pin
Number
Harness Wire color Function
1 YEL/WHT Radio switched power
2 WHT/RED ACC (Main stereo power supply)
3 GRN/RED Radio remote switch
4 BLU Security input
5 RED/YEL Rear stereo amplifier-right rear (+), Right rear door speaker (+)
6 BLU/YEL Rear stereo amplifier-left rear (+), Left rear door speaker (+)
7 RED/GRN Front passenger's door speaker (+), Right tweeter (+)
8 BLU/GRN Driver's door speaker (+), Left tweeter (+)
9 RED/BLK Lights-on signal
10 WHT or WHT/BLU Constant power
15 BRN/WHT Rear stereo amplifier-right rear (-), Right rear door speaker (-)
16 GRY/WHT Rear stereo amplifier-left rear (-), Left rear door speaker (-)
17 BRN/BLK Front passenger's door speaker (-), Right tweeter (-)
18 GRY/BLK Driver's door speaker (-), Left tweeter (-)
19 RED Dash lights brightness controller (in the driver's multiplex control unit)
20 BLK Ground

Bose (2005-2006)

Pin
Number
Harness Wire color Function
1 YEL/WHT Stereo amplifier power supply. Antenna amplifier power supply
2 WHT/RED ACC (Main stereo power supply)
3 GRN/RED Radio remote switch
4 GRN/WHT
 or BLU
Security line (navigation display unit) or Passenger's multiplex control unit
5 BLU Stereo amplifier (RR SP+)
6 RED Stereo amplifier (RL SP+)
7 YEL Stereo amplifier (FR SP+)
8 WHT Stereo amplifier (FL SP+)
9 RED/BLK Lights-on signal
10 WHT/BLU Constant power
11 BLK/WHT Radio remote switch (GND)
12 PUR Navigation unit (RG GND)
13 LT GRN Navigation unit (RG L+)
14 LT GRN OnStar control unit (TELE AUTO MUTE)
15 BLK Stereo amplifier (RR SP-)
16 GRN Stereo amplifier (RL SP-)
17 BRN Stereo amplifier (FR SP-)
18 ORN Stereo amplifier (FL SP-)
19 RED Dash lights brightness controller (in the driver's multiplex control unit)
20 BLK Ground

 

A15 BLK
 

14 pin Acura Head Unit CD Changer connector connector layout
14 pin Acura Head Unit CD Changer connector connector
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Acura MDX (2003-2006) Head Units visual pinout:click to enlarge
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