Retrofit wiring harness - AZ82.70-P-0001-04GH

1. Prepare portable CTEL wiring harness (2) as shown in figure.
   Fig 1: Identifying Portable CTEL Wiring Harness

   
2. Attach CTEL interface (A34/4) to interface mount (15) with 2 torx screws (16).
3. Attach GSM 1800 MHz compensator (A28/3) to mount (15) with 2 torx screws (16).
4. Connect portable cellular telephone wiring harness (2) to CTEL interface (A34/4).
5. Connect branch of portable CTEL wiring harness (2) to GSM 1800 MHz compenstor (A28/3).
6. Connect antenna cables to GSM 1800 MHz compensator (A28/3).
   Fig 2: Identifying Portable Cellular Telephone Wiring Harness And Components

   
7. Unscrew self-tapping screws (50) at instrument panel.

   Insert mount with control modules from above through the radio opening.

8. Connect fiber optic cable.
9. Insert mount (15) with interface as shown in figure between the two mounting plates (51) and (52) and attach with the self-tapping screws (50).
10. Route microphone connector (C) and adapter wiring harness connector (D) upward into radio shaft.
    Fig 3: Identifying Self-Tapping Screws And Microphone Connector

    
11. Connect portable CTEL wiring harness (2) to adapter wiring harness (9).
12. Inspect fuse (23) (a 10A fuse must be fitted).
    Fig 4: Identifying Fuse And Portable CTEL Wiring Harness

    
13. Expose tied back green 2-pin connector (E) for standard microphone lead and connect with microphone connector (C) from portable cellular telephone wiring harness (2).
14. Connect adapter wiring harness (9) to radio connector.
15. Fit together radio connector C and adapter (A2/C).

    On models fitted with COMAND (code 352) the radio connector C is part of the COMAND wiring harness in the form of an intermediate connector (must be exposed).

    Fig 5: Identifying Radio And Connector For Adapter Wiring Harness

    

    Depending on vehicle equipment (vehicles without navigation system Audio 30 APS or COMAND or with navigation system) the connection of the telephone antenna differs.

A Only for models without navigation system 

1. 16.1 On vehicles without navigation system the antenna connection cable (ANT) is connected directly to the black (sw) connector of the antenna cable (19) and connected to the GSM 1800 MHz compensator (A28/3).

A Only for models with navigation system 

2. 16.2 On vehicles with navigation system the antenna cable (ANT) is connected to the antenna diplexer (A2/57). The antenna connection cable (19/1) is connected to the red (rt) socket at the antenna diplexer (A2/57) and to the GSM 1800 MHz compensator (A28/3).
   Fig 6: Identifying

   
3. 17 The GSM 1800 MHz compensator is connected to the antenna cable (17) at the mount for the portable CTEL (1).