GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 CTS 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Radio/Navigation System Schematics
Figure 1:

Radio, Amp, Radio/HVAC Control (U2R/U2S) Power, Ground and Communication (Left Hand Drive with UQA)
Object Number: 2080299 Size: FS
Figure 2:

Radio, Amp, Radio/HVAC Control (U2R/U2S) Power, Ground and Communication (Right Hand Drive with UQA)
Object Number: 2081676 Size: FS
Figure 3:

Radio, Amp Power, Ground and Communication (UQS)
Object Number: 2080675 Size: FS
Figure 4:

Front Speakers (Left Hand Drive with UQA)
Object Number: 2080678 Size: FS
Figure 5:

Front Speakers (Right Hand Drive with UQA)
Object Number: 2081816 Size: FS
Figure 6:

Rear Speakers (UQA)
Object Number: 2080681 Size: FS
Figure 7:

Noise Compensation Microphone, Navigation Audio Inputs, and Speakers (UQS) 1 of 2
Object Number: 2080683 Size: FS
Figure 8:

Speakers (UQS) 2 of 2
Object Number: 2080686 Size: FS
Figure 9:

Cellular/Navigation Microphone, Traffic Receiver (U2X)
Object Number: 2080688 Size: FS
Figure 10:

Antenna Signals
Object Number: 2080692 Size: FS
Figure 11:

Radio/HVAC Display
Object Number: 2080695 Size: FS
Figure 12:

U2X/U2Y
Object Number: 2081287 Size: FS