GM Service Manual Online
For 1990-2009 cars only

Radio

The following radios are available:


Object Number: 182407  Size: SH
    • AM-FM Stereo, Seek/Scan, Clock, Auto Reverse Music Search Cassette, Automatic Tone Control (UL0)

Object Number: 182410  Size: SH
    • AM-FM Stereo, Seek/Scan, Clock, Compact Disc, Automatic Tone (U1F)

Object Number: 182409  Size: SH
    • AM-FM Stereo, Delco-Bose® Seek/Scan, Clock, Auto Reverse Music Search Cassette, Compact Disc, Automatic Tone (UP0)

AM

The range for most AM (Amplitude Modulated) stations is greater than for FM (Frequency Modulation), especially at night. Longer range, however, can cause stations to interfere with each other. AM can pick up noise from things like storms and power lines. Try reducing the treble to reduce this noise.

FM Stereo

FM (Frequency Modulation) stereo will give you the best sound. But FM signals will reach only about 10 to 40 miles (16 to 65 km). Tall buildings or hills can interfere with FM signals, causing the sound to come and go. If reception is poor, tuning to a stronger station will bring improvement.

All factory-equipped sound systems with a FM stereo radio will switch to stereo operation whenever an FM stereo broadcast is being received, and a STEREO or ST indicator will light on the display. Stereo operation means the radio is separating a stereo broadcast back into the original two channels, called left and right.

Multiple Compact Disk Player (U1S)

If the vehicle is equipped with the U1S option code, the audio system may have a rear compartment mounted multiple compact disc player. This player is capable of playing up to 12 compact discs continuously.

Steering Wheel Controls (UK3)

If the vehicle is equipped with the UK3 option code, buttons located on the steering wheel control certain radio functions.

Rear Window Antenna (U77)

The rear window antenna is mounted above the defogger grid on the rear window glass. This system is able to increase the signal strength and improve the radio reception.

Speakers

The following speaker systems are available:

    • Dual front door mounted and dual extended range package shelf speaker system (UX7)
    • Performance enhance audio speaker system (UQ3)
    • Bose® audio system (U85)