Radio Reception
During radio reception the digital radio signals are received by the antenna system and transmitted to the Remote Digital Audio Receiver (RDAR) where they are decoded. Then the Remote Digital Audio Receiver (RDAR) transmits the signals onwards via the MOST network to the infotainment control module (ICM) and the integrated audio module (IAM) or the audio module (AUD) depending on the vehicle configuration.
Remote Digital Audio Receiver (RDAR) uses the signal, satellite or terrestrial, which is strongest at the time.