The DELCO® entertainment system consists of an electronically tuned AM-FM stereo receiver with cassette and six system speakers. The speakers are arranged as follows:

On the DELCO® systems, the radio performs all processing and amplification functions, and amplifies the system speakers directly.

The DELCO® radio is located in the center of the I/P and provides all operator interface to the radio and cassette (or CD) functions. The I/P dimmer lamp control controls the incandescent bulbs which provide the backlighting. The park lamp input controls the LED annunciators dimming. The Vacuum Tube Fluorescent (VTF) display indicates the time of day, the radio frequency, or the CD track information. The I/P cluster supplies the Pulse Width Modulated (PWM) signal which controls the VTF.

The radio internally grounds the speakers in all DELCO® music systems. The improper installation of add-ons such as tape players, CBs, etc., may damage the system.

The DELCO-BOSE® entertainment system consists of the following components:

On DELCO-BOSE® systems, the radio passes the line level output audio signals to the radio signal processor for processing, and then to the radio speaker amplifier for amplification to the speakers. The single amplifier powers all of the speakers.

The DELCO-BOSE® radio is located in the center of the I/P and provides all operator interface to the radio and cassette (or CD) functions. The I/P dimmer lamp control controls the incandescent bulbs which provide the backlighting. The park lamp input controls the LED annunciators dimming. The Vacuum Tube Fluorescent (VTF) display indicates the time of day, the radio frequency, or the CD track information. The I/P cluster supplies the Pulse Width Modulated (PWM) signal which controls the VTF.

The radio internally grounds the speakers in all DELCO-BOSE® music systems. The improper installation of add-ons such as tape players, CBs, etc., may damage the system.

The AM-FM antenna system is integrated with the rear window defogger. The antenna the rear window defogger grids for the radio signal reception. The antenna amplifier is mounted on the rear parcel shelf and amplifies the incoming radio signals for radio system reception and operation. If static is heard on the radio when the rear defogger is first turned on, a grid may need to be repaired.

Inspect that the inside surface of the glass is not scratched and that the lines on the glass are not damaged. This could interfere with the radio operation. Do not clear ice from the inside of the window using a credit card, an ice scraper, or any other similar hard object. This may damage the grid and affect the radio's ability to clearly receive the radio signals.

If a cellular telephone is to be added to the vehicle, and the antenna needs to be attached to the glass, be careful no to damage the grid lines. There is a specific location at the top of the glass dedicated for the installation of a cellular telephone antenna.

1. DSPL -- Pressing this button will display either the time of day or the current station being played.
2. Preset Stations -- The six preset buttons can be preset for up to 18 stations, 6 each of the AM, FM1, and FM2 bands. Preset the stations as follows:

•	Select the desired band using the BAND button.

•	Tune to the desired station.

•	Press and hold one of the six preset buttons until a chime sounds. (The display channel number and the audio will return.)

•	Holding the button for longer than two seconds will activate the fast seek mode.

3. FADE

•	Lightly press the knob in order to extend.

•	Turn the knob clockwise or counterclockwise in order to move the sound to the RH or LH speakers, respectively.

•	The middle knob position is a detent and balances the speakers.

4. BAL

•	Lightly press the knob in order to extend.

•	Turn the knob clockwise or counterclockwise in order to move the sound to the RH or LH speakers, respectively.

•	The middle knob position is a detent and balances the speakers.

5. SCAN

•	Press and hold this button for 2-3 seconds or until the display shows PSCAN.

•	Each of the presets will be scanned for a few seconds and will continue until the button is pressed again.

6. TREBLE

•	Lightly press the knob in order to extend.

•	Rotate the knob clockwise or counterclockwise in order to increase or decrease the treble response of the music, respectively.

7. TUNE/SEEK

•	Press this button until a chime is heard in order to tune to the next higher or lower frequency.

•	If the button is held for more than two seconds after the chime, the radio will go into the fast tune mode.

•	Release the button when the desired station is reached.

8. BASS

•	Lightly press the knob in order to extend.

•	Rotate the knob clockwise or counterclockwise in order to increase or decrease the bass response of the music, respectively.

9. BAND

•	Press up for access to the FM1 and FM2 bands.

•	Press down for access to the AM band.

10. PWR/VOL Knob

•	Press the volume knob in order to turn the radio ON or OFF.

•	Turn the knob clockwise/counterclockwise in order to turn the volume up or down, respectively. The knob is designed to turn infinitely.

11. SOURCE -- Press this button in order to toggle between the radio, cassette, and CD functions.
12. HR/MIN (Clock)

•	Press DSPL until the clock is displayed.

•	Press and hold HR or MIN until the time display begins to change.

•	Release the button when you reach the correct time.

•	There is a two second delay before the clock goes into the time-set mode.

Some audio functions can be controlled by the steering wheel mounted controls. They are as follows:

Both the base DELCO® and the optional DELCO-BOSE® audio systems are equipped with an end-load cassette player only.

The following functions can be controlled from the radio:

1. EJECT

•	Pressing EJECT will discard the tape.

•	This button is activated with the ignition in the RUN or ACCESSORY position, and with the radio ON or OFF.

2. SCAN

•	Press SCAN in order to listen to each selection for a few seconds.

•	SCAN displays until the next selection is found, then PLAY displays.

•	Press SCAN again in order to stop scanning.

•	The radio is muted during the SCAN mode.

3. TUNE/SEEK

•	Press this button in order to select the next (>) or previous (<) selection.

•	SEEK displays for the next selection; REP displays for the previous selection.

•	There must be a 3 second blank tape gap for proper operation.

•	The tape direction arrow (< or >) blinks during the SEEK operation.

•	Audio is muted during the SEEK mode.

4. SOURCE -- Press this button in order to toggle between the tape and the radio functions.
5. FF and REV

•	Push FF in order to rapidly go forward on the tape.

•	Push REV in order to rapidly go backward on the tape.

•	To stop FF or REV, push the same button lightly.

•	The radio will play during the FF or REV mode.

6. SIDE -- Press this button in order to play the other side of the tape.

The compact disc changer is a dealer installed option available from service parts.

If the CD changer is being installed on a vehicle with the optional Delco-Bose® system, the CD changer wiring harness connections are already in place.

If the CD changer is being installed on a base Delco® system, the CD changer wiring harness must be installed by routing the harness from the CD changer, under the carpet retainer and up to the radio unit as outlined on the instruction sheet supplied with the CD player package.

The following functions can be controlled from the radio when a CD changer is installed:

1. RDM

•	Press this button in order to play the CD tracks in a random order rather than in a sequence.

•	RDM is displayed when this mode is active.

2. DSPL

•	With the CD activated, pressing this button once will display the elapsed time.

•	Press the button again within 5 seconds in order to display the number of CDs loaded in the magazine and where the CDs are loads.

•	Press the button again in order to review what preset buttons are active.

3. Preset Buttons

•	The preset buttons allow you to switch between CDs 1-12.

•	Press preset buttons 1-6 in order to switch between the first 6 CDs.

•	Press the SOURCE button until the display reads CD 7-12 in order to switch between CDs 7-12. The number 1 preset becomes CD 7, 2 becomes CD 8, and so on.

4. TUNE/SEEK

•	Press < in order to go to the beginning of a track if more than 8 seconds have played.

•	Press > in order to hear the next track. If this button is pressed longer or more than once, the CD will continue to advance.

5. REV

•	Press and hold the button in order to return rapidly to a favorite passage.

•	Note the elapsed time displayed and release the button in order to resume playing.

•	The radio will play at a reduced volume during REV operation.

6. FF

•	Press and hold the button in order to forward rapidly to a favorite passage.

•	Note the elapsed time displayed and release the button in order to resume playing.

•	The radio will play at a reduced volume during FF operation.

7. SIDE

•	Press this button in order to advance to the next CD.

•	This function operates in consecutive order and will cycle through all of the loaded CDs.

8. SOURCE

•	Press this button in order to stop the CD and play the radio.

•	Press the button again and the CD will restart at the same stopping point.