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

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.
Secure control unit to the footplate using commercially available screws (30).
Uncover connection lines (VDA) in area of the right A-pillar and connect to the hands-free system interface box (3).

Fig 2: Identifying Hands-Free System Interface Box And Screws
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 codings and only fit in the corresponding connector.

Fig 3: Identifying Hands-Free System Interface Box & ICANI Connection 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.
Unplug speaker connection (SP) at the right A-pillar.
Bridge 2-pin line to speaker connection (SP) using cable connector (V).

Fig 5: Identifying Speaker Connection At Right A-Pillar
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.