GM Service Manual Online
For 1990-2009 cars only

Radio

The following radios are available for the 1999 Chevrolet W Car:

    • AM-FM Stereo (UM7)
    • AM-FM Stereo with Cassette Tape and Automatic Tone Control (UL0)
    • AM-FM Stereo with Compact Disc Player Automatic Tone Control (UN0)

AM

The range for most Amplitude Modulated (AM) stations is greater than that for Frequency Modulation (FM), especially at night. The longer range can cause stations to interfere with each other.

The following conditions also interfere with the AM radio:

    • Storms
    • Power lines
    • Neon lights

Use one of the following actions in order eliminate this noise:

    • Reduce the treble.
    • Tune to a stronger station.

FM Stereo

The FM (Frequency Modulation) stereo will produce the best sound. All of the factory equipped sound systems with a FM stereo radio will switch to stereo operation whenever an FM stereo broadcast is received. A STEREO or ST indicator will light on the display. Stereo operation means that the radio is separating a stereo broadcast back into the original two channels, called left and right.

The following conditions may interfere with FM reception:

    • The FM signal is out of the range limitation
        FM signals reach 16-65 km (10-40 miles).
    • Tall buildings or hills
    • Interference from other stations

Use one of the following actions in order eliminate this noise:

    • Turn to a stronger station.
    • Reduce the treble.

Steering Wheel Radio Control Switches (UK3)

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

Antenna

The radio antenna is designed to provide good radio reception in all directions and most areas. This vehicle is available with only the fixed mast antenna. Two antenna extension cables are used in the antenna system. Procedures regarding the service of the antenna apply to the front and rear cables.

Speakers

The following speaker systems are available for this vehicle:

    • Dual Front Door Mounted and Dual Extended Range Package Shelf Speaker System (UX7)
    • Dual Coaxial Front and Dual Coaxial Package Shelf Speaker System (U62)