The supply line with the ''ignition ON'' (INT) protected by the fuse F39 of the underdashboard control unit B2, provides the lighting for the electric windows switch in the front door, passenger sideH50, the hazard warning lights, fog lights, rear fog lampH12, headlamp alignment, instrument panel light adjustment, milometer zeroingH10, connector for preparation for the telephoneD75and lastly the switch unit on the tunnelH35in addition to the radioP20(BASIC version - without display).The supply with the side lights on is, on the other hand, provided by the Body ComputerM1 pin 18 of connector C to the cigar lighter P50 and to the connector for the preparation for the telephoneD75.The ''MODE'' and ''KM'' controls for the unitH10are also supplied by the line (INT) protected by fuse F39 of control unitB2and send the command to the instrument panelE50, pin 16 of connector B and pin 9 of connector A.The Body ComputerM1is connected, via the CAN line, to the instrument panelE50 from which it receives the ''light intensity adjustment'' signal which is transmitted to the radio connector (or the radio-phone-navigator) and to the climate control system control unit . See E1050 CAN CONNECTION LINES