GMC Workshop Service and Repair Manuals > Sierra 1500 4WD V8-6.0L (2007) > Accessories and Optional Equipment | Radio, Stereo, and Compact Disc | Amplifier, Sound System | Component Information | Technical Service Bulletins | Page 21640

Automatic Volume Control > < Instruments/Audio - No Speaker Audio/Warning Chimes|Page 21639

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Amplifier: Service and Repair

Radio Speaker Amplifier Replacement

Accessories and Optional Equipment
Radio, Stereo, and Compact Disc / Amplifier, Sound System / Technical Service Bulletins
Page 21640

Automatic Volume Control > < Instruments/Audio - No Speaker Audio/Warning Chimes|Page 21639