Audio and Video

OPERATION

The audio system components are designed to provide audio entertainment and information through the reception, tuning and amplification of locally broadcast radio signals in both the Amplitude Modulating (AM) and Frequency Modulating (FM) commercial frequency ranges.

The audio system components operate on battery current received through a fuse in the Totally Integrated Power Module (TIPM) on a fused ignition switch output (RUN-ACC) circuit so that the system will only operate when the ignition switch is in the Run or Accessory positions.

On vehicles that are equipped with the optional remote radio switches, the Cab Compartment Node (CCN) receives hard wired resistor multiplexed inputs from the remote radio switches. The programming in the CCN allows it to process those inputs and send the proper messages to the radio receiver over the Controlled Area Network (CAN) to control the radio volume up or down, station seek up or down, preset station advance, and mode advance functions.

Refer to audio system for more information.