Radio/Audio System

RADIO FEATURES






RADIO

The operator interfaces with the radio system through the radio display and controls. Through these controls the operator is able to control system power, volume, fade, balance, bass, and treble equalizations. Control on the integrated tape, single CD or 6-disc CD playback systems is also available when equipped with those options. An LCD (liquid crystal display) provides system feedback to the operator.

The radio processes the AM and FM signals from the antenna system of the information from the cassette tape or CD media sections, amplifies that information and sends the output to the speaker system.

The radio is located in the instrument panel center stack area and is fastened to the instrument panel by 2 fasteners. Guide pins are provided to aid in aligning the radio. Electrical connections to the radio are a 24-way connector from the I/P harness, antenna lead connector and braided ground strap. An additional 12-way harness connector is present on OnStar(R) equipped vehicles. Additional service length is provided in the radio harnesses to allow connection prior to radio installation.

Clock time is displayed continuously on all radio models even then the ignition is OFF. Temporary backlighting is provided if the RCL button is pressed with the ignition OFF. Backlighting is ON whenever the ignition is ON and dims with the instrument panel illumination when the vehicle park lamps are ON.

Radio amplifier outputs to the speakers are protected from damage should speaker leads become shorted to ground or shorted to vehicle power. The radio will sense these conditions and shut down the amplifier outputs in a non-destructive manner. After the short condition is removed, the radio will return to normal operation.

The radio receives audio input from the entertainment system AVI module. Audio from the DVD player is selectable at the radio like other radio media, CD or Cassette Tape, by pressing the AUX button. The radio makes the video AUX mode available when IGN#2 and IGN#3 are high, battery voltage. In video AUX mode, the radio display shows AUX and fade, balance and tone control are available.