Speaker static

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ipaqxman
Posts: 257
Joined: Mon Oct 10, 2011 2:19 am
Location: NYC, NY

Ive been experiencing worsening speaker static / popping noise, which seems to correlate with when i apply the brake. Ive found it to be more prominent when i first start the car, and also perhaps after rain. Coming from only the left passenger door speaker. This happens even when no source is selected or radio off. Anyone experienced this?
2011 Kizash SLS AWD
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murcod
Posts: 2279
Joined: Fri Aug 03, 2012 12:03 pm
Location: Australia

SLS = RF audio with amplifier in the boot/ trunk?

It could be noise (voltage spikes) from your alternator when it's charging the battery. The battery would be at it's lowest voltage just after starting, so maximum drain on the alternator. When it's fully charged the battery would act like a filter and reduce the spikes from the alternator.
David
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ipaqxman
Posts: 257
Joined: Mon Oct 10, 2011 2:19 am
Location: NYC, NY

Yup SLS with RF woofer.

How can i fix it if alternator theory is true
The noise only comes from one speaker n only started past winter. Some googling says may be grounding issue?
2011 Kizash SLS AWD
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sx4rocious
Posts: 485
Joined: Mon Jul 22, 2013 8:31 pm

try adding a ground loop isolator. They're about 10 bucks at Radio Shack so if it didn't work, you wouldn't be out much...
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SamirD
Posts: 3074
Joined: Thu Dec 05, 2013 4:07 pm
Location: HSV and SFO
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This does sound like a grounding issue. Are you still under warranty?
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ipaqxman
Posts: 257
Joined: Mon Oct 10, 2011 2:19 am
Location: NYC, NY

I am. But as usual, everytime I bring the car to the dealer they cannot replicate the issue
2011 Kizash SLS AWD
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SamirD
Posts: 3074
Joined: Thu Dec 05, 2013 4:07 pm
Location: HSV and SFO
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ipaqxman wrote:I am. But as usual, everytime I bring the car to the dealer they cannot replicate the issue
Hmm. Is there a way you can record the sound using a small video camera pointed at the speaker? Then, I'd give them the video clip and tell them to check out all grounds that could be an issue.

The other thing I'd do is check the service manual to find out where the grounds that may be related to this issue are and check them myself.
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ipaqxman
Posts: 257
Joined: Mon Oct 10, 2011 2:19 am
Location: NYC, NY

I recorded it but they said without actually duplicating the symptom they wont even know what to check
2011 Kizash SLS AWD
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SamirD
Posts: 3074
Joined: Thu Dec 05, 2013 4:07 pm
Location: HSV and SFO
Contact:
Contact SamirD

Wow, just wow. Morons. How can hearing a recording of it for preliminary diagnosis be any different than when it actually happens? :evil:

Stay away from those clowns. Just break open the Factory Service Manual and see what you can do on your own. And we'll help!
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