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Two wires connected to each speaker, one feed circuit (+) and one return circuit (-), allow the audio output signal electrical current from the appropriate channel of the audio power amplifier to flow through the speaker voice coil. The graphic above shows the mapping of the amplifier channels to the speakers. However, it should be noted that channels 5 and 6 of the 8 channel amplifier are unused.
The hard wired circuits between the audio power amplifier and the speakers, or between the Radio Receiver Module (RRM) and the amplifier may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. For proper wire repair, and connector repair procedures. Refer to STANDARD PROCEDURE . and. Refer to REMOVAL . Refer to INSTALLATION .