GM Service Manual Online
For 1990-2009 cars only

The base radio system consists of the following components:

    • A radio receiver
    • Four speakers
    • A front and rear window antenna

The radio system may also include the following options:

    • A cassette player with or without Auto Tone
    • A CD player with or without Auto Tone
    • A dual Cassette/CD player with Auto Tone
    • A 6 speaker sound system
    • A remote CD changer.

The following radio systems are available:


Object Number: 517025  Size: SH
    • UM7 Base AM / FM Stereo

Object Number: 258774  Size: SH
    • UN6-AM/FM Stereo Cassette

Object Number: 258776  Size: SH
    • ULO-AM/FM Stereo Cassette with Auto Tone

Object Number: 258781  Size: SH
    • UNO-AM/FM Stereo CD with Auto Tone

Object Number: 258785  Size: SH
    • UP0-AM/FM Stereo Cassette/CD with Auto Tone