Operation CHARM: Car repair manuals for everyone.

General Information

The Entertainment System on this vehicle is configured with a base and uplevel system. The base and uplevel systems contain a radio, antenna, speakers, and on some vehicle lines an audio amplifier.

The uplevel system differs from the base system by providing the customer with enhanced audio system features. Some of those features may include the Radio Data System (RDS), an audio amplifier and programmable equalizer (EQ).

Battery positive voltage is supplied to the radio from the RDO/INTLP fuse in the Fuse Block-Left I/P. The radio ground is wired to G302 and G303. Radio power is also a function of the class 2 power mode messages from the Power Mode Master (PMM). On this vehicle the PMM is the Body Control Module (BCM).

The following list shows the radios available for this vehicle:
^ Base Radio (UM7) - AM/FM Stereo
^ Base Radio (UM6) - AM/FM Stereo and Cassette
^ Base Radio (U1C) - AM/FM Stereo and CD
^ Uplevel Radio (UPO ) - AM/FM Stereo, Cassette, CD, and RDS
^ Uplevel Radio (U1P) - AM/FM Stereo, CD, EQ and RDS
^ Uplevel Radio (U1Q) - AM/FM Stereo, Cassette, CD, EQ and RDS

Radio Features:




RADIO FEATURES

Cassette Features:




CASSETTE FEATURES

Compact Disc Features:




COMPACT DISC FEATURES

Each item in the list below represents topics covered in detail below:
^ AM/FM Reception
^ Antenna
^ Audio Amplifier
^ Theft Deterrent
^ Remote Playback Device
^ Radio Data System (RDS)
^ Radio Chime Level Adjustment
^ Tape/CD Player Error Messages

For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application. RPO Codes