Acura MDX (2003-2006) Head Units pinout and wiring @ old.pinouts.ru

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

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

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