Speakers giving off a high pitch squeal after stereo install

[35tires]

I've recently put focal slatefiber components up front of my 23 4 door. I have 6.5 slatefibers in the mabett pods and a single 8 jl audio w1. It's running off an audiocontrol ACX-650.5

It puts out this high pitch whine/tone that is absolutely deafening. I had a shop install it and it only came on a few weeks after install. It started very occasionally at higher speeds but now it's any time you turn on the car it makes this awful tone.

Anyone have any ideas what's going on?

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[Boreal]

Ground Loop?

 

[Bschurr]

What other “electrical” mods have you added to your Bronco after the stereo mod and just before the noise started?

 

[35tires]

Just a pillar lights and fogs on aux. 6.

 

[Bschurr]

Just a pillar lights and fogs on aux. 6.

Disconnect them and see if it solves your issue.

 

[Area51BS]

Change with rpm?

 

[Area51BS]

All speaker or one? Flip flop input. Problem stay in same speaker? Problem is not from the radio. If it moved to another channel problem is before amp. Flip inputs back. If no change. Now flip flop speaker wires at amp. Problem stay in same speaker? It’s after the amp. If it moved, it’s in the amp. Get the picture? Still other possibilities.

 

[Brian_B]

My guess would be bad ground on the amp, or it's grounded too close/along with something else it shouldn't be.

 

[35tires]

All speaker or one? Flip flop input. Problem stay in same speaker? Problem is not from the radio. If it moved to another channel problem is before amp. Flip inputs back. If no change. Now flip flop speaker wires at amp. Problem stay in same speaker? It’s after the amp. If it moved, it’s in the amp. Get the picture? Still other possibilities.

It seems to be both front speakers where the component set is.

It does get louder with higher speed but very minimal - at 80 it's INSANE. It happens at 5mph just the same but less frequently/can stop for a minute or two at times.

 

[2022 base]

It seems to be both front speakers where the component set is.

It does get louder with higher speed but very minimal - at 80 it's INSANE. It happens at 5mph just the same but less frequently/can stop for a minute or two at times.

Did you install load resistors? They are needed for the amp you have.

 

[35tires]

Did you install load resistors? They are needed for the amp you have.

I'm not sure. I didn't install myself. I have had heard similar on a friend's car when they had a huge system and the alternator started to go or something, but this forum has so many intelligent people with such a wide array of knowledge I wanted to ask around.


'm just trying to get my head around what's happening and I don't think I'll use that installer in the future. I plan on doing the 12 inch screen upgrade soon, but they missed the mark big time here.

It makes the car impossible to drive. It's like an instant migraine. I have ran into some wild hiccups building this thing but that was the craziest.

 

[2022 base]

I'm not sure. I didn't install myself. I have had heard similar on a friend's car when they had a huge system and the alternator started to go or something, but this forum has so many intelligent people with such a wide array of knowledge I wanted to ask around.


'm just trying to get my head around what's happening and I don't think I'll use that installer in the future. I plan on doing the 12 inch screen upgrade soon, but they missed the mark big time here.

It makes the car impossible to drive. It's like an instant migraine. I have ran into some wild hiccups building this thing but that was the craziest.

Where is the amp @....If you can see it you could look for the load resistors on the high level input. here is a link for pic...AC-LGD - AudioControl
Yours should be the green 20ohm ones

 

[35tires]

Where is the amp @....If you can see it you could look for the load resistors on the high level input. here is a link for pic...AC-LGD - AudioControl
Yours should be the green 20ohm ones

Amp is under the back driver side panel in the cargo bay. It's totally hidden and takes a while to get to. I had 2 break ins so far, I didn't want to risk having something out in the open.

 

[2022 base]

Amp is under the back driver side panel in the cargo bay. It's totally hidden and takes a while to get to. I had 2 break ins so far, I didn't want to risk having something out in the open.

I understand. You could damage the amp if you do not have the resistors so have another shop look for you?

 

[2022 base]

watch this video, he has good knowledge of the resistors and audio control products.

FPDV5631000H 2023 Retail Library | Mustang Mach-E | GM :15 (youtube.com)

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