Aftermarket Radio trouble?

2007 CADILLAC CTS
160,000 MILES • 2.8L • V6 • 4WD • AUTOMATIC
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LEYNA07
  • MEMBER
  • 41 POSTS
We recently bought the car listed above with a aftermarket stereo. Now my issue is my passenger side front and back speakers don't sound.
Nov 6, 2022 at 5:29 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,837 POSTS
  • ASE Certified Mechanic
There is an amplifier on the left rear strut tower that drives the right-side speakers, I would retrieve the wires and run them directly to the aftermarket unit. Here are the radio wiring diagrams so you can see how the system works and which wires run the right-side speakers. Check out the images (below). Please let us know if you need anything else to get the problem fixed.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
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Professional Diagram for 2CarPros Members
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Professional Diagram for 2CarPros Members
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Professional Diagram for 2CarPros Members
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Nov 7, 2022 at 10:48 AM
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