April 5, 2026: LEMON Manuals is launched! Read the announcement.

Radio/Navigation System Schematics

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Radio Power, Ground, Serial Data, and Antenna Signals

GM1907246

Courtesy of GENERAL MOTORS CORP.

Fig 2: Amplifier (UQA or UQS) and Rear Seat Audio (UK6) Power, Ground, and Serial Data

GM1907248

Courtesy of GENERAL MOTORS CORP.

Fig 3: Amplifier Inputs - UQA/UQS

GM1907250

Courtesy of GENERAL MOTORS CORP.

Fig 4: Front Speakers - UQ3

GM1907252

Courtesy of GENERAL MOTORS CORP.

Fig 5: Rear Speakers - UQ3 Except UK6

GM1907256

Courtesy of GENERAL MOTORS CORP.

Fig 6: Rear Speakers - UQ3 with UK6

GM1907258

Courtesy of GENERAL MOTORS CORP.

Fig 7: Front Speakers - UQA/UQS

GM1907261

Courtesy of GENERAL MOTORS CORP.

Fig 8: Rear Speakers - UQA

GM1907264

Courtesy of GENERAL MOTORS CORP.

Fig 9: Rear Speakers - UQS

GM1907266

Courtesy of GENERAL MOTORS CORP.

Fig 10: Digital Radio Receiver - U2K

GM1907269

Courtesy of GENERAL MOTORS CORP.