Operation CHARM: Car repair manuals for everyone.

General Information






Radio System

Radio Systems

concert

symphony

Sound Systems

Standard

BOSE

General Information

The radio systems are prepared for satellite radio use or Satellite Radio is installed.

The radio have two tuners with phase diversity and each one has an antenna connection (AM/FM1 and FM2).

Besides switching diversity, phase diversity is the second procedure for reducing reception interference.

At least two antennas with amplifier and a radio with two tuners is required.

If the signal received is interrupted, both signals are digitalized and separated in the tuners in the radio so that the disrupted signals are blocked out as much as possible.

If the reception signal is not disrupted, the radio constantly compares which antenna (amplifier) has the strongest reception. This is then transferred.

In this case, the second tuner checks the frequency band in the background for better reception frequencies for the selected station. If a better signal is found, this tuner switches to reception and the other to the background.

Satellite radio for SDARS is installed in luggage compartment.

Communication with other vehicle systems takes place via the Infotainment CAN-Bus and data bus on board diagnostic interface.

Symphony transport mode, activating/deactivating, refer to => [ Symphony Transport Mode, Activating/Deactivating ] Symphony Transport Mode, Activating/Deactivating.

Troubleshooting and diagnosis takes place with Guided Fault Finding using vehicle diagnosis, testing and information system (VAS 5051).