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Fig. 12 Remote Radio Switch Operational View:

REMOTE SWITCH
A remote radio control switch option is available on some models. Two rocker-type switches are mounted on the back (instrument panel side) of the steering wheel spokes. The switch on the left spoke is the seek switch and has seek up, seek down, and preset station advance functions. The switch on the right spoke is the volume control switch and has volume up, and volume down functions. The switch on the right spoke also includes a "mode" control that allows the driver to sequentially select AM radio, FM radio, cassette player, CD player or CD changer (if equipped).

The six switches in the two remote radio switch units are normally open, resistor multiplexed momentary switches that are hard wired to the Integrated Power Module (IPM) through the clockspring. The IPM sends a five volt reference signal to both switch units on one circuit, and senses the status of all of the switches by reading the voltage drop on a second circuit.

When the IPM senses an input (voltage drop) from any one of the remote radio switches, it sends the proper switch status messages on the Programmable Communication Interface (PCI) data bus network to the radio receiver. The electronic circuitry within the radio receiver is programmed to respond to these remote radio switch status messages by adjusting the radio settings as requested. For diagnosis of the IPM or the PCI data bus, the use of a DRB III scan tool and the proper Diagnostic Procedures manual are recommended.

For more information on the features and control functions for each of the remote radio switches, refer to the owner's manual.

SPEAKER
Standard
The standard equipment speaker system includes speakers in four locations. One 15.2 X 22.8 centimeter (6 X 9 inch) full-range speaker is located in each front door. There is also one full-range 13.3 centimeter (5.25 inch) diameter full-range speaker located in each rear door.

Two wires connected to each speaker, one feed circuit (+) and one return circuit (-), allow the audio output signal electrical current to flow through the voice coil. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

Premium
The optional premium speaker system features eleven Premium model speakers in seven locations. Each of the standard speakers is replaced with Premium model speakers. One 8.8 centimeter (3.50 inch) diameter speaker is located on each end of the instrument panel top pad. One 6.3 centimeter (2.50 inch) diameter speaker is located in the center of the instrument panel top pad. One 15.2 X 22.8 centimeter (6 X 9 inch) Premium speaker is located in each front door. There is also one full-range 13.3 centimeter (5.25 inch) diameter Premium full-range speaker located in each rear door. The premium speaker system also includes a power amplifier mounted behind the glove box. The total available power of the premium speaker system is 240 watts.

Two wires connected to each speaker, one feed circuit (+) and one return circuit (-), allow the audio output signal electrical current to flow through the voice coil. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.