Component Description: ACM
The ACM can be operated with the ignition in RUN, ACC, or OFF.
The ACM receives radio waves containing audio from the antenna coaxial cables and converts them into fluctuating AC voltage. For the 2017 MY+, the ACM monitors both the FM1 and FM2 inputs and switches to the strongest signal for optimal listening quality. The ACM receives stereo and mono audio signals from the APIM in the form of fluctuating AC voltage. The ACM processes all inputs, and depending on the input received, sends stereo or mono analog audio signals to the subwoofer amplifier and all speakers except the subwoofer as fluctuating AC voltage. The subwoofer amplifier processes the audio signals and sends them to the subwoofer speaker as fluctuating AC voltage.
The ACM receives radio waves containing satellite radio and HD Radio ® (if equipped) data through the antenna coaxial cables. The data is sent to be displayed on the FDIM.
The ACM contains the CD player.
For vehicles with navigation, the ACM sends data to the APIM through the SDL circuits for the SIRIUS Travel Link features.
The ACM contains the DACMC.
The ACM and DACMC require separate PMI procedures when the ACM is replaced.