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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29520
Experience:  GM Grand Master Technician 2007. 14 years experience.
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2007 suburban Bose stereo all speakers are distorted

Customer Question

2007 suburban Bose stereo all speakers are distorted
Submitted: 1 year ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 1 year ago.

Hi there, I am Cam. Can I get your first name?

With your speakers, did they all happen at once or did it come on one at a time?

Customer: replied 1 year ago.
All at once even at low volume
Expert:  GM Tech (Cam) replied 1 year ago.

Ok Mike, so louder its ok??

Customer: replied 1 year ago.
Expert:  GM Tech (Cam) replied 1 year ago.

Ok, so this might just be a poor connection at the amp. To be sure, can you get me your vin so I can verify which style of amp you have?

Customer: replied 1 year ago.
I am away from it for about an hour can I get back to you?
Expert:  GM Tech (Cam) replied 1 year ago.

Absolutely. Let me fill you in on what I am thinking. IF you have a standard amp, meaning its not operated by the data network, there may be a wiring issue in the centre console. Below is the information.


Inspect the following areas:

  1. Inspect the low level audio circuits (1947, 511, 1546, 512, 1547, 599, etc.) for opens or shorts between the radio and amp.
  2. Inspect center console wire harness, approximately 5 inches (12.7 cm) from connector C306 towards the amp connector, for excessive twisting. If the harness has excessive twisting the bare drain wire (circuits 2011 or 2099) may cut into the low level audio signals and cause this concern. Repair/Replace harness as necessary.
  3. The center console harness contains power and ground circuits which may induce noise into the audio circuits. Removing the harness tape and separating the wires will reduce or eliminate the noise. Repair/Replace harness as necessary.
  4. Inspected C306 and the amplifier connectors for loose terminal connections. Repair/Replace harness as necessary.

    C306 is Headliner harness to right A-pillar harness front center roof behind the left side of the overhead console assembly.
Customer: replied 1 year ago.
Expert:  GM Tech (Cam) replied 1 year ago.