Pinouts >  Genuine Acura or Honda Car Audio Head units  >  Acura pinouts
24 pin Honda Head Unit Audio connector layout
24 pin Honda Head Unit Audio connector
at the car stereo
p/n 39100-TL2-A500, 39050-TL2-A01ZA, 39100-TL2-A50; Face ID 1XA4

 

24 pin Main Connector

Pin
Number
harness color Terminal Description
1 RED ILL-BULB Dash light brightness controller
3 LT BLU K-LINE Data link connector (DLC)
4 BRN SCTY- Navigation display unit
5 BRN REMOTE GND Audio remote switch ground
6 ORN RR PRE- Stereo amplifier
7 BLU RR PRE+ Stereo amplifier
9 GRY SH RR-RL Stereo amplifier
10 YEL RL PRE- Stereo amplifier
11 PUR RL PRE+ Stereo amplifier
12 BLK MAIN GND Ground
13 GRY ILL+ Light-on signal
14 PUR ACC Audio power supply
16 PNK REMOTE Audio remote switch
17 WHT SWD +B Stereo amplifier
18 GRN FR PRE- Stereo amplifier
19 BLK FR PRE+ Stereo amplifier
21 GRY SH FR-FL Stereo amplifier
22 WHT FL PRE- Stereo amplifier
23 RED FL PRE+ Stereo amplifier
24 WHT +B Constant power

 

Pin
Number
harness color Terminal Description
3 BLK AUX SIG GND Auxiliary jack assembly
4 GRY AUX SH GND
5 YEL AUX GND
6 RED DUET TX (UART) Audio-navigation switch panel
7 GRN DUET RX (UART)
8 BLU BCAN L B-CAN bus communication
9 RED TELM SIG HandsFreeLink control unit
10 GRY TELM SIG SH
13 RED AUX LCH Auxiliary jack assembly
14 WHT AUX RCH
15 GRY AUX DET
16 GRY SH DUET GND Audio-navigation switch panel
17 BLU DUET CONT
18 PNK B-CAN H B-CAN bus communication
19 GRN TELM SIG HandsFreeLink control unit
20 PUR HFL MUTE

 

Pin
Number
harness color Terminal Description
1 RED ELS DATA- Stereo amplifier
2 GRN ELS DATA+
3 RED OPERA RX Audio-navigation switch panel
4 GRY SH OPERA GND
5 PNK OPERA CONT
7 GRY SH ELS GND Stereo amplifier
8 WHT OPERA TX Audio-navigation switch panel
9 GRN ENC-
10 BLK ENC+
11 BLU PWR SW

Pin
Number
harness color Terminal Description
2 WHT CTR PRE- Stereo amplifier
4 RED CTR PRE+
5 LT GRN AMP MUTE
6 GRN SUB W PRE-
7 GRY SH CTR-SWF GND
8 BLK SUB W PRE+

 

14 pin CD Changer Connector

Pin
Number
harness color Terminal  
1 WHT +B USB adapter unit, AcuraLink control unit , XM receiver unit
2 LT BLU SYS ON
3 GRY GA-NET BUS SH USB adapter unit, HandsFreeLink control unit, Navigation display unit, AcuraLink control unit
4 GRY AUDIO SH USB adapter unit, HandsFreeLink control unit, AcuraLink control unit , XM receiver unit
5 GRN AUDIO R+
6 BLK AUDIO L+
9 RED GA-NET BUS USB adapter unit, HandsFreeLink control unit, Navigation display unit, AcuraLink control unit , XM receiver unit
10 GRN GA-NET BUS
11 BLK GND USB adapter unit, AcuraLink control unit , XM receiver unit
13 WHT AUDIO R- USB adapter unit, HandsFreeLink control unit, AcuraLink control unit , XM receiver unit
14 RED AUDIO L-

 

Audio Navigation Switch panel connector

 

Pin
Number
harness color Terminal connects to
1 GRN ENC- Audio unit
3 BLU DUET CONT
6 WHT OPERA TX
7 RED DISP CLK Climate control unit
10 BLK GND Ground
11 RED ILL-LED Dashlight brightness controller
12 RED ILL-BULB
13 BLK ENC+ Audio unit
14 BLU PWR SW
15 GRN DUET RX (UART)
16 RED DUET TX (UART)
17 PNK OPERA CONT
18 RED OPERA RX
19 PUR DISP SI Climate control unit
21 LT GRN IG2 Audio-navigation switch panel power supply
22 WHT +B Constant power
23 GRY ILL+ Light-on signal

 

Acura TSX (2009-2014) amplifier p/n 39186TL2A112

 

Pin
Number
wire color Function
1 RED Audio unit (ELS DATA- )
2 BLK Ground (G401) (GND)
3 WHT Audio unit (SWD +B)
4 BLK Audio unit (CTR PRE+)
5 GRY Audio unit (SH CTR-SWF GND)
6 RED Audio unit (SUB W PRE+ )
8 GRY Navigation unit (NAVI SH GND)
9 WHT Navigation unit (NAVI GND)
10 BLK Audio unit (FL PRE+)
11 GRN Audio unit (FR PRE+)
12 GRY Audio unit (SH FR-FL GND)
13 RED Audio unit (RL PRE+)
14 WHT Audio unit (RR PRE+)
15 GRN Audio unit (ELS DATA+)
16 GRY Audio unit (SH ELS GND)
17 PUR Audio unit (AMP MUTE)
18 WHT Audio unit (CTR PRE-)
19 GRN Audio unit (SUB W PRE-)
21 BLK Navigation unit (NAVI LCH)
24 WHT Audio unit (FL PRE-)
25 RED Audio unit (FR PRE-)
26 GRY Audio unit (SH RR-RL GND)
27 GRN Audio unit (RL PRE-)
28 BLK Audio unit (RR PRE-)

 

Pin
Number
Pin
Name
Description
1 LT BLU Subwoofer (SUBW SP )
2 BLU Front center speaker (CTR SP- )
3 BLU Right rear door speaker (RR SP- )
4 GRN Left rear speaker (RL SP- )
5 ORN Right rear door speaker (SAT R SP- )
6 GRN Front passenger’s door speaker, Front passenger’s door tweeter (FR SP-)
7 BLU Driver’s door speaker,Driver’s door tweeter (FL SP- )
8 BRN Left rear door speaker (SAT L SP- )
9 BLK Ground (G651) (GND)
10 GRY Subwoofer (SUBW SP+)
11 YEL Front center speaker (CTR SP+)
12 RED Right rear speaker (RR SP+)
13 WHT Left rear speaker (RL SP+ )
14 BLU Right rear speaker (SAT R SP+ )
15 RED Front passenger’s door speaker, front passenger’s door tweeter (FR SP+)
16 BLK Driver’s door speaker, driver’s door tweeter (FL SP+)
17 YEL Left rear speaker (SAT L SP+)
18 WHT Constant power (+B)
14 pin Honda Head unit CN702 proprietary connector layout
14 pin Honda Head unit CN702 proprietary connector
at the head unit
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Acura TSX (2009-2010) with ELS audio Navigation Head Unit visual pinout:click to enlarge
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