2892575 - E3510 RADIO - Functional description (CONNECT)

Functional description

The radio P20 is supplied directly (pin 4 and of connector A) by the battery via the line for the maxifuse J/B1 for B5 and is protected by fuse F10 of the junction unit B1 . It receives a supply when the ignition is switched on (INT) (pin 7 of connector A) via the line for fuse F1 of the junction unit B1 . Pin 6 of connector A receives the supply with the side lights switched on via the line protected by fuse F2 located in the junction unit B1 See E2010  SIDE LIGHTS / NO. PLATE LIGHTS . Pin 8 of connector A is earthed. Pin 5 of connector A is connected to the amplifier P25 which controls the supply for the aerial. The feeder P25 is then connected to the radio by means of the special aerial cable.

Connector B sends out cables carrying signals to the speakers:

  • pins 5 and 6 to the left front speakers P35 and P45 ;
  • pins 3 and 4 to the right front speakers
  • pins 7 and 8 to the left rear speakers P40 ;
  • pins 1 and 2 for the right rear speakers P41 .
The CD player P75 receives a supply from the battery via the line for fuse F10 of junction unit B1 and maxifuse J/B1 of B5 . The cable connected to CD player P75 comes out of connector E: the controls for the steering wheel also go from there via the clock spring D47 : a special impedance adapator P130 is needed for connecting the radio to the controls.