Radio Speaker Amplifier

The radio speaker amplifier is standard on the uplevel system. The radio speaker amplifier on this vehicle is turned on when it receives battery voltage from the Radio Interface Module (RIM), when the radio is turned on, via the amp enable circuit. Low level audio signals are sent by the radio to the RIM for processing and then to the radio speaker amplifier for amplification to the speakers. The radio speaker amplifier powers all of the speakers and the radio internally grounds the speakers.