For 1990-2009 cars

When the ignition switch is in the RUN or the ACCY position, the electronically tuned radio receives power from the following components:

• | The RADIO ACCESSORY fuse

• | CKT 43

The clock and the memory circuits receive power from the RADIO BATTERY fuse at all times. The radio is grounded through CKT 151. When the ignition switch is in the RUN or the ACCY position, the vacuum fluorescent display illuminates in order to display the following features:

• | The time

• | The radio frequency setting

The panel dimmer switch controls the radio illumination. When the headlamp switch is in the PARK or the HEAD position, voltage is applied through the panel dimmer switch and CKT 8 to the following components:

• | The radio panel lamps

• | The internal circuitry

When the headlamp switch is in the PARK or the HEAD position, voltage is applied through CKT 9 to the radio. This condition signals the internal circuitry to adjust the brightness of the vacuum fluorescent display to a level determined by the voltage of CKT 8.

### Remote Cassette Tape Player (Optional)

Voltage is supplied to the cassette player through the radio under the following conditions:

• | The ignition switch is turned to the RUN or the ACCY position.

• | The radio power switch is in the ON position.

When the remote cassette player is in the PLAY position, the cassette player returns a tape ON signal and the stereo audio signals to the radio. The tape ON signal causes the following actions to occur:

• | The receiver circuitry ignores the signals from the tuner.

• | The receiver circuitry sends the audio signals from the cassette player to the speakers.

The cassette player applies a mute signal to the radio in order prevent the audio sound of the following functions from being heard:

• | FWD

• | REV

• | SEEK

When the EJECT button is pushed on the cassette player, the following actions occur:

• | The tape ON signal terminates.

• | The radio returns to normal operation.