Description And Operation: Operation

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.

The audio amplifier receives fused B+ current from a fuse in the rear Power Distribution Center (PDC) and is grounded through a circuit of the body wire harness that is secured to the body sheet metal at all times. The internal circuitry of the amplifier switches the amplifier ON or OFF based upon electronic messages that are received over the Controller Area Network - Interior High Speed (CAN-IHS) data bus from the radio whenever the radio is turned ON.

The amplifier receives analog sound signal inputs from the front and rear, left and right outputs of the radio, then provides the amplified speaker outputs for each of those channels to the appropriate speakers through dedicated audio output circuits. The amplifier also receives electronic messages from the Body Control Module (BCM) and the radio over the CAN-IHS data bus that communicate the correct channel settings for optimum speaker sound and output.