This annoying whine

[Dbld54]

Hi, I needed Assistance troubleshooting an annoying whine coming out of my speakers.
I think it started when my ground point in the trunk, became loose and I had to try different areas but not too sure.

I have two amps, I've disconnected the subwoofer amp to try and keep it simple.
This leaves the 4 channel amp.
Clues:
The sound does not get louder when I increase the volume.
It is present even with volume at level 0 on the HU.
If i disconnect the 4 rcas the whine is gone. If I connect any rca cable to any of the Jacks the whine returns. Even if it's just 1 rca, that one speaker will whine.
I've tried several ground points, the latest is using an existing ground from the stock Ford wiring.
The ground points are sanded and tightly connected.
Amp fuses are fine.

Please let me know if you have any ideas.
Thanks

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[HardofWhoring]

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[HardofWhoring]

PISS OFF. YOU say the stupidest **** on the internet, and have NO CLUE what you are talking about. MOST of your posts I have seen is you saying the exact opposite of the right thing. YOU should not be criticizing a damn person on here. (not edited)

 

[audiobaun 5,000+ posts]

So what is your solution for the issue of this thread to help the OP out>?? Ive seen nothing that you have posted on this site that has a resolution to the issue one has. Nothing but pure Bull Shitt and random tongue with the smell of pure dogg shitt. I guess at the age of 12 maybe 10 your pants are a bit tight wearing the skinnys cutting off the brain circulation needed to function on a normal basis perhaps? Such Bull Shitt. Fuvk Off . Worthless time consuming smack head. Good grief. Snort another one. Better yet.., shove your nose a bit closer to a cats azz and follow it around for a couple days and maybe clear your thought process before posting something useful?

 

[audiobaun 5,000+ posts]

Thank you all for taking the time to reply. I've been tearing down the system/wiring trying to isolate the problem. Please take a moment to look at my attachments and recent findings:


1. distribution block lost it's ability to show the voltage, perhaps some clue or maybe irrelevant. Fuses are not broken and it is grounded. Amp powers on fine.
2. deck has rca wire to wire connection, not rca wires to rca jacks on deck, (didn't try the pico workaround)
3. videos show popping sound when going from volume level 0 to 1 and 1 to 0, also and when changing radio stations (in accessory mode) Also when turning on / off the car
4. no popping sounds when increasing volume or leaving radio playing (in accessory mode)
5. I tried using each set of RCA cables on the rear speakers alone, then the front speakers alone. The popping continued in each scenario. (accessory mode)
6. I removed each speaker wire from the amp, one by one, the popping continued.
7. With the car started, the whine is constant, with the car in accessory mode, the whine is not present.
8. When using the power windows, the whine is presented loudest. When accelerating, the whine increases.

Can anyone make sense of this or help guide me to next steps to troubleshoot further

I would make sure that all the speaker wires that are not being used on the back of the HU are Cut flush and taped or caped off separately so that they are not touching within the same taped housing, and try a ground wire from the back of the HU to a solid cleaned off metal surface/Bolt.

 

[audiobaun 5,000+ posts]

 

[spokey9]

You're gonna say some dumb sh!t like this while questioning somebody's "training"...

 

[Dbld54]

Good news and bad news.
First, thank you for the guidance. Great to have this forum available and responding.

I bought a new RCA adaptor from China, and soldered that to the amp board resolving the loud popping and crackling when touching the rca connection. I did find one capacitor that moved very easily compared to the others. It seemed one of two leads was loose so i removed it, cleaned the area and re-soldered.
Unfortunately! with the car running there was still a loud whine, increasing with gas pedal and power windows.

Since the mono amp did not produce the same problems, i needed to confirm next with a 4-channel amp, recommended by others in this post.
SOB it worked. No constant whine, or whine when pushing the gas pedal or using the power windows.

Nothing else looked damaged on the amp board. I'll take it apart again look more closely but it looks like i'll be buying new this weekend

 

[Jimi77 5,000+ posts]

Good news and bad news.
First, thank you for the guidance. Great to have this forum available and responding.

I bought a new RCA adaptor from China, and soldered that to the amp board, I did find one capacitor that moved very easily compared to the others. It seemed one of two leads was loose so i removed it, cleaned the area and re-soldered.
Unfortunately! with the car running there was still a loud whine, increasing with gas pedal and power windows.

Since the mono amp did not produce the same problems, i needed to confirm next with a 4-channel amp, recommended by others in this post.
SOB it worked. No constant whine, or whine when pushing the gas pedal or using the power windows.

Nothing else looked damaged on the amp board. I'll take it apart again look more closely but it looks like i'll be buying new this weekend

Why not try a ground loop isolator on the 4 channel?

 

[Dbld54]

Why not try a ground loop isolator on the 4 channel

Why not try a ground loop isolator on the 4 channel?

Thanks for the reply, 2 questions:
which of the two options below? and does it effect SQ?

Amazon product ASIN B0763HW31Y
Amazon product ASIN B07S8VKG99