Amplifier Interface UQA (GMLAN)
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The main amplifier power is provided by a 30A fuse located in the underhood fuse block. For vehicles equipped with UQA, the radio commands the amplifier to perform the following functions through serial data (GMLAN) communication. The radio controls both the overall muting and the rear seat muting via serial data (GMLAN) messaging.
- Volume
- Balance
- Fade
- Bass
- Midrange
- Treble
- DSP Modes
- Volume Compensation
- Chime Output