Pinouts >  Genuine Chrysler, Fiat, Dodge, Jeep Car audio connectors and harness  >  Fiat pinouts
36 (20+8+8) pin Head Unit / Car Stereo ISO connector layout
36 (20+8+8) pin Head Unit / Car Stereo ISO connector
at the head unit

CONNECTOR A

  •  1         N.C.                                                                2         N.C.

  •  3         N.C.                                                                4         N.C.

  •  5         N.C.                                                                6         12v Controlled by Ignition for ask Amplifier

  •  7         N.C                                                                 8         N.C

  •  9         N.C.                                                               10        Input 1 for Steering Wheel Buttons

  • 11        Input 2 for Steering Wheel Buttons                    12        Reference for Steering Wheel Buttons

  • 13        Rx CD Changer BUS                                        14        Tx CD Changer BUS

  • 15        12v Permanent for CD Changer                          16        12v Controlled by Ignition for CD Changer

  • 17        GND CD Changer BUS                                     18        Audio Reference from CD Changer

  • 19        Left Audio Signal from CD Changer                     20        Right Audio Signal from CD Changer

 

CONNECTOR B

  •  1         + Right Rear Speaker                                      2         - Right Rear Speaker

  •  3         + Right Front Speaker                                     4         - Right Front Speaker

  •  5         + Left Front Speaker                                       6         - Left Front Speaker

  •  7         + Left Rear Speaker                                        8         - Left Rear Speaker

 

CONNECTOR C

  •  1         BUS B-CAN B                                                  2         Input from BOSE Amplifier

  •  3         BUS B-CAN A                                                  4         Key on Input (+Key)

  •  5         12v for Automatic Aerial                                     6         N.C.

  •  7         12v Permanent                                                  8         GND Supply

 

CONNECTOR D

  •  1         N.C.                                                                2         Serial Line for Telepass

  •  3         N.C.                                                                4         N.C.

  •  5         N.C.                                                                6         Input from Privacy Handset

  •  7         Audio Signal to Privacy Handset (MIC OUT)        8         Microphone Input from Privacy Handset (MIC IN)

  •  9         Input from Handsfree Microphone                      10        N.C,    

  • 11        N.C.                                                               12        Electronic Earth           

  • 13        Crash –ve Signal from Airbag ECU                    14        N.C.

  • 15        N.C.                                                               16        Microphone Input from Privacy Handset (MIC IN Ref)

  • 17        Audio Signal to Privacy Handset                       18        Input from Handsfree Microphone (MIC IN Ref)

  •            (MIC OUT Ref)

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