The radio P020 (pin A4 of connector A) receives a supply directly from the battery via the line protected by fuse F36 of the Body Computer M001 (pin 12 of connector E).Pin A8 of connector A of P020 is connected to the driver''s dashboard earth C015.The radio P020 (pins A1 and A3 of connector A) is connected via the B-CAN to the Body Computer (pins 22 and 17 of connector D) and to the other system nodes.The radio aerial P025 (or, on versions with Blue&Me, the triple function aerial P110) is connected by a dedicated coaxial cable to connector C of P020.Connector A of the radio P020 is also connected to the speakers:
pins B5 (+) and B6 (-) to driver''s front speakers P035 (mid-woofer) and P045 (tweeter);
pins B3 (+) and B4 (-) to passenger side front speakers P036 (mid-woofer) and P046 (tweeter);
pins B7 (+) and B8 (-) to the left rear speaker P030 (full-range);
pins B1 (+) and B2 (-) to the right rear speaker P031 (full-range).
The Body Computer M001 is connected to the radio controls on the steering wheel via the clock spring D047: Specifically:
at pin 6 of D047 the reference earth signal from pin 35 of connector D of M001 is received;
the signal is sent, from pin 4 of D047, for the MUTE, VOL+ and VOL- controls (located to the left of the steering wheel) to pin 50 of connector D of M001;
the signal is sent, from pin 3 of D047, for the SOURCE, SCAN+ and SCAN- controls (located to the right of the steering wheel) to pin 52 of connector D of M001.
On configurations with Bluetooth and Blue&Me, connector B of P020 is connected to the Convergence control unit M162. See E3570 INTEGRATED RADIO PHONE See E4090 NAVIGATORThe Body Computer M001 receives a direct battery power supply (pin 1 of connector A) protected by fuse F01 of the engine compartment junction unit B001 (pin 18 of connector B); it also receives an ignition-controlled supply (INT) at pin 11 of connector E.The Body Computer M001 is also connected to the driver''s dashboard earch C015 via pins 9 and 10 of connector E.