E3580 Mobile telephone arrangement

Description

The vehicle is also available, on request, prepared for the installation of a cellular telephone.

This preparation consists of:

• a special aerial, in the rear part of the roof;
• a hands-free speaker, located in the passenger door. It involves the same speaker as the radio with two connections: one especially for the radio and another for the cellular phone hands-free function.
• supply connection, for recharging the mobile phone; it is located near the radio and also acts as a mount for the radio
• connecting cables for the aerial, radio, speaker and vehicle electrical supply.

a microphone to complete the hands-free function does not come with this equipment because it is provided in the telephone connection kit and should be positioned at will.

The mobile phone connection has two power supplies; one direct and one ignition-operated; another power supply works with the side lights on and serves to light the phone - if present.

The operation of the telephone, temporarily switches off the radio (MUTE function).

The above two lines are protected by a fuse in the junction unit.

Description of operation

The connection D75 receives a supply directly (pin 6) from the battery via the line for fuse F10 of the junction unit B1 and maxifuse J/B1 of B5 up to 2/99 or of B99 from 2/99.

It receives a supply controlled by the ignition (INT) (pin 8) via the line for fuse F1 of the junction unit B1.

The supply with the side lights switched on reaches pin 7 via the line coming from the switch for the steering column switch unit H5 and protected by the controls illumination fuse B11 up to 2/99 or fuse F4 of the additional fuse box B98B from 2/99

Pin 6 of connection D75 is earthed, while pins 9 and 10 provide the signal for the speaker P36, connector B, while connector A is for the radio ( Wiring diagram E3510 CAR RADIO ).

Lastly, pin 1 is connected to the radio P20 (MUTE function).

Wiring diagram

Components

Component location