Retrofit control unit and interface - AZ82.70-P-0008-01TTA

Route connection line for CTEL bracket (1) to the right knee bolster.
Connect antenna line (ANT) to the strapped-down car antenna in the area of the right A-pillar.

Fig 1: Identifying Control Unit And Interface Components
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Place hands-free system interface box (3) on the front passenger footplate as shown in the figure, mark out hole pattern and drill with a 2 mm dia. bit.
Connect hands-free system speaker (21) to the connector (SP) and route to the cover of the front passenger knee bolster. Install loudspeaker.
Use commercially available screws (30) for the installation.
Secure control unit to the footplate using commercially available screws (30).

Fig 2: Securing Hands-Free System Interface Box
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Route connector coupling (8) from the telephone bracket to the hands-free system interface box (3) and connect to hands-free system interface box (3) as shown in the figure.
The plugs have different codlings and only fit in the corresponding connector.

Fig 3: Identifying Hands-Free System Interface Box & Connector Coupling
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Place ICANI Box (2) on the left side wall in the luggage compartment as shown in the figure and mark hole pattern.
For vehicles with audio gateway, this must be pulled out of the bracket behind the side wall before drilling.
Drill hole pattern using 3 mm dia. bit and secure ICANI box (2) using commercially available sheet metal screws.
Connect connection coupling of CAN wiring harness (4).

Fig 4: Identifying ICANI Box & CAN Wiring Harness
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.