Audio Unit Connector for Inputs and Outputs
Audio Unit Connector A (24P) (female terminals)

Cavity
Terminal Name
Description
A1
GND
Ground for audio unit (G404)
A2
Not used
???
A3
+B BACKUP MAIN
Continuous power source
A4
Not used
???
A5
RL SPKR+
Outputs sound signal for left rear door speaker
A6
RL SPKR?
Outputs sound signal for left rear door speaker
A7
RR SPKR+
Outputs sound signal for right rear door speaker
A8
RR SPKR?
Outputs sound signal for right rear door speaker
A9
AUDIO REMOTE SW
Detects control signal from audio remote switch
A10
DISPLAY SW
Detects control signal from audio remote switch
A11
Not used
???
A12
K LINE
Detects scan tool signal (serial data)
A13
Not used
???
A14
B-CAN_H
Communication signal
A15
FL SPKR+
Outputs sound signal for driver's door speaker and left tweeter*3
A16
FL SPKR?
Outputs sound signal for driver's door speaker and left tweeter*3
A17
FR SPKR+
Outputs sound signal for front passenger's door speaker and right tweeter*3
A18
FR SPKR?
Outputs sound signal for front passenger's door speaker and right tweeter*3
A19
REMOTE SW GND
Audio remote switch and HFL switch ground
A20
HFT/NAVI REMOTE SW
Detects control signal from HFL switch
A21
Not used
???
A22
VSP
Inputs vehicle speed pulse
A23
ACC RR CAMERA*1
Power source for accessories or detects reverse signal
ACC*2
Power source for accessories
A24
B-CAN_L
Communication signal
*1: USA and Canada models with keyless access system
*2: Mexico models or without keyless access system
*3: With tweeter


Audio Unit Connector B (32P) (female terminals)

Cavity
Terminal Name
Description
B1
Not used
???
B2
Not used
???
B3
Not used
???
B4
Not used
???
B5
HFT MUTE
Outputs HFL microphone DSP switching signal
B6
SH MIC
Shield for terminals No. 22 and No. 23
B7
MIC PWR
Power source for HFL microphone
B8
Not used
???
B9
Not used
???
B10
IG1 METER
IG1 power source
B11
Not used
???
B12
Not used
???
B13
RC VCC
Power source for rearview camera
B14
CAMERA V GND
Ground for video signal
B15
BACK LT
Detects reverse signal
B16
CAMERA ADPT
Detects connection for rearview camera
B17
Not used
???
B18
Not used
???
B19
Not used
???
B20
Not used
???
B21
Not used
???
B22
MIC+
Inputs HFL microphone signal
B23
MIC?
Ground for HFL microphone
B24
Not used
???
B25
Not used
???
B26
Not used
???
B27
Not used
???
B28
SH CAMERA
Shield for terminals No. 13, No. 14, No. 29, and No. 30
B29
CAMERA V
Video signal for rearview camera
B30
RC GND
Ground for rearview camera
B31
CAMERA BIT0
Mode select signal for rearview camera
B32
CAMERA BIT1
Mode select signal for rearview camera
Audio Unit Connector C (24P) (female terminals)

Cavity
Terminal Name
Description
C1
F-CAN B_H*1
F-CAN_H*2
Communication signal
C2
Not used
???
C3
Not used
???
C4
Not used
???
C5
Not used
???
C6*3
LANEWATCH SW
Detects LaneWatch on/off signal from LaneWatch switch
C7
Not used
???
C8*3
LWC CAM VCC
Power source for LaneWatch camera
C9*3
SH LWC CAM
Shield for terminals No. 8, No. 20, No. 21, and No. 22
C10
Not used
???
C11
Not used
???
C12
Not used
???
C13
F-CAN B_L*1
F-CAN_L*2
Communication signal
C14
Not used
???
C15
Not used
???
C16
Not used
???
C17
Not used
???
C18
Not used
???
C19
Not used
???
C20*3
LWC CAM VID
Inputs video signal from LaneWatch camera
C21*3
LWC CAM VGND
Ground for LaneWatch camera
C22*3
LWC UART
Communication signal for LaneWatch camera
C23
Not used
???
C24
Not used
???
*1: With CMBS
*2: Without CMBS
*3: With LaneWatch


Audio Unit Connector E (3P) (female terminals)

Cavity
Terminal Name
Description
E1
SWD +B
Power source for AM/FM antenna
E2
AM/FM
Inputs AM/FM signal
E3
SH(AM/FM)
Shield for terminal No. 2
Audio Unit Connector F (5P) (female terminals)

Cavity
Terminal Name
Description
F1
USB1 GND
Ground for USB device
F2
USB1 VBUS
Outputs power source for USB port A
F3
USB1 DATA+
Communication signal
F4
USB1 DATA?
Communication signal
F5
USB1 SH
Shield for terminals No. 1, No. 2, No. 3, and No. 4
Audio Unit Connector G (5P) (female terminals)

Cavity
Terminal Name
Description
G1
USB2 GND
Ground for USB device
G2
USB2 VBUS
Outputs power source for USB port B
G3
USB2 DATA+
Communication signal
G4
USB2 DATA?
Communication signal
G5
USB2 SH
Shield for terminals No. 1, No. 2, No. 3, and No. 4
Audio Unit Connector H (2P) (female terminals) (With XM)

Cavity
Terminal Name
Description
H1
SAT/TER
Inputs satellite/terrestrial signal
H2
SH(SAT/TER)
Shield for terminal No. 1
Audio Unit Connector J (2P) (female terminals)

Cavity
Terminal Name
Description
J1
GPS ANT
Inputs GPS signal
J2
GPS SH
Shield for terminal No. 1