FUNCTIONAL DESCRIPTION
The radio P020 is supplied directly (4 of connector A) by the battery via the line for fuse F36 of the Body Computer M001; in 2 of P020 receives a power supply indicating the presence of the HIFI system.
Pin 8 of connector A is earthed.
Pins 1 and 3 of connector A receive the CAN line by which radio the P020 is connected to Body Computer M001 - pin 18 and 22 of connector D - and to the other system nodes.
The Body Computer M001 is connected to the radio controls on the steering wheel via the clock spring D047: pin 35 of connector D provides the reference earth at pin 6 of D047; pin 52 of connector D of M001 receives the signals from the buttons to the right of the steering wheel, whilst pin 50 of connector D of M001 receives the signals from the buttons to the left of the steering wheel.
The Body Computer M001 - connector A - receives a direct power supply from the battery through the line protected by maxi fuse F01 of the engine compartment junction unit B001.
The Body Computer M001 receives an ignition-operated power supply (INT) at pin 11 of connector E.
Pin 9 of connector E of M001 provides the Body Computer with a reference earth.
The amplifier P070 is supplied directly by the battery - at pin A4 - via the line for fuse F60 of the luggage compartment junction unit B045; pin A8 of the amplifier P070 is earthed. Pin C8 of P070 is then connected to the radio p020 - pin 5 of connector A - which provides a positive enablement signal to turn the actual amplifier on.
The cables with signals for the amplifier P070 leave connector B of P020 (pins C6-14, C4-12, C5-13 and C15-7).
The cables with signals leave the amplifier P070 for the speakers; - pins A3 and A7 to the left front speaker P035; - pins A2 and A6 to the right front speaker P036; - pins B3 and B4 to the left front tweeter P045; - pins B5 and B6 to the right front tweeter P046; - pins A1 and A5 to the left rear speakers P030 and P047; - pins B7 and B8 to the right rear speakers P031 and P048.
The subwoofer P049 receives a direct power supply from the battery, at pin 6, via the line for fuse F61 of the luggage compartment junction unit B045; pin 5 of P409 is earthed, whilst pins 1, 2 and 4 are connected to the amplifier P070.
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