Popping in car speakers

le0n3x · 03-16-2026, 11:19 AM

2007 328xi e92. Speakers have been popping for a while. I replaced the driver side subwoofer as it died recently, and it sounds amazing (HiFi) but I’m sooo tired of the popping sound I get. I heard it was some SOS thing so I bought the cable , plugged it in, did nothing. FWIW, this car is the single hump so i don’t even have a phone or screen or nothing. Any help?

Fredo · 03-16-2026, 11:30 AM

How old is your battery? Someone in the e46 forum said the problem was gone after a new battery was installed.

It's also possible the electronics in the head unit are failing.

ctuna · 03-16-2026, 12:21 PM

Always check the Amplifier first for Water damage , in the cars that have amplifiers. This is the most common problem.
Make sure your battery and alternator voltage are good to .

le0n3x · 03-17-2026, 06:54 AM

Quote:

Originally Posted by Fredo

How old is your battery? Someone in the e46 forum said the problem was gone after a new battery was installed.

It's also possible the electronics in the head unit are failing.

Fairly new. 10/2025 battery that I installed 1/2026

le0n3x · 03-17-2026, 06:55 AM

Quote:

Originally Posted by The Nightman

I experienced something similar and turned out the speaker plug in the driver door came loose. Not sure if it's your fix but simple enough to check

You had a popping sound in your speakers and a driver side door soaking fixed it? My speakers soak sound amazing but it just pops even when the car is off

le0n3x · 03-17-2026, 06:55 AM

Quote:

Originally Posted by ctuna

Always check the Amplifier first for Water damage , in the cars that have amplifiers. This is the most common problem.
Make sure your battery and alternator voltage are good to .

I just replaced the amp shortly before I replaced the driver side subwoofer

ctuna · 03-17-2026, 10:40 PM

How do you know what you got was good?
And why did you replace it ?

le0n3x · 03-18-2026, 03:59 AM

Quote:

Originally Posted by ctuna

How do you know what you got was good?
And why did you replace it ?

~2 weeks ago the speakers sounded terrible and had no bass. Ending up self diagnosing && guessing it was my driver side subwoofer (I also replaced the amp first but that didn’t fix it) . Replaced it and now my speakers sound like how it was before / even better.
I’ve had the car since September 2025 and it’s the same weird popping sound I deal with

03-16-2026, 11:19 AM	#1
le0n3x New Member 2 Rep 30 Posts Drives: Join Date: Sep 2025 iTrader: (0)	Popping in car speakers 2007 328xi e92. Speakers have been popping for a while. I replaced the driver side subwoofer as it died recently, and it sounds amazing (HiFi) but I’m sooo tired of the popping sound I get. I heard it was some SOS thing so I bought the cable , plugged it in, did nothing. FWIW, this car is the single hump so i don’t even have a phone or screen or nothing. Any help?
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03-16-2026, 11:30 AM	#2
Fredo Major 721 Rep 1,013 Posts Drives: 11 X3, 12 335i, 20 X3 Join Date: Mar 2011 Location: Austin TX iTrader: (3)	How old is your battery? Someone in the e46 forum said the problem was gone after a new battery was installed. It's also possible the electronics in the head unit are failing.
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03-16-2026, 12:21 PM	#3
ctuna Lieutenant General 2439 Rep 14,069 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	Always check the Amplifier first for Water damage , in the cars that have amplifiers. This is the most common problem. Make sure your battery and alternator voltage are good to .
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03-17-2026, 10:40 PM	#7
ctuna Lieutenant General 2439 Rep 14,069 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	How do you know what you got was good? And why did you replace it ?
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