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Old Jun-15-17, 09:36 PM   #1
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Default Dash noise

So i've searched for anything similar and had no luck so i made a new thread.

Ive got this crazy noise in the dash that sounds just like a bad speaker connection, gradually getting worse too. Hit a bump and it goes crazy. Figured it was the dash speaker as i already replaced every other speaker but those and removed the Bose amp in favor of a Soundstream and figured it gave up the ghost. Turns out it is not that dash tweeter. Is there a Onstar speaker under the dash somewhere. When i open the door i hear a light cracking or more like a little buzz, but driving it is loud and annoying. Its not the tweeter because i had removed it and opened the door and heard the noise. Anyone hear of this or have any ideas?
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Old Jun-16-17, 09:55 AM   #2
 
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Maybe bad ground on head unit. Is it aftermarket or factory head unit? If aftermarket, you need to ground directly to metal behind the dash.


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Old Jun-16-17, 07:00 PM   #3
 
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I wonder if it isn't the OnStar speaker fan above your left ear

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Old Jun-16-17, 08:56 PM   #4
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Quote:
Originally Posted by CHEVY6000TBSS View Post
I wonder if it isn't the OnStar speaker fan above your left ear

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If it's this it would be in the B pillar. There was a TSB on some of them being bad back in the day.


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Old Jun-18-17, 01:28 PM   #5
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It was a bad connection on the amp. Thanks for all the input.
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Old Jun-19-17, 05:28 AM   #6

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Good to know. Glad you found it
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