Amplifier Interface UQA (GMLAN)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. 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 under hood 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