Radio Buzz/Engine whine

[mrm143]

I did a search but really couldnt find a solution other than put in an aftermarket system LOL
I have an 05 envoy bose system and getting the engine whine out of the left rear speaker. Although it is intermittent, I read that it does get worse. Does anyone have a definite fix for this issue, I saw it had something to do with the rear seat console?

 

[Regulator]

I thought that engine whine through the speakers is a symptom of a bad ground. I am sure someone smarter then me will be along soon though.

 

[pejeeper]

bad ground behind the radio unit, somewhere between the radio out to speaker and the speaker itself

are you sure it's only from one speaker? using the balance & fader, I'd check each one (if you havent yet done this)

back in the day, when I was a car audiophile, we had to install ground loop isolators to kill the engine whine from the speakers but the car stereo technology got better and they were no longer necessary

 

[mrm143]

All I know is that if I tap the center console where the rear controls are it goes away

 

[pejeeper]

All I know is that if I tap the center console where the rear controls are it goes away

BAM. Bad ground. Pull the rear console and chase those wires.

 

[CaptainXL]

All I know is that if I tap the center console where the rear controls are it goes away

This fix for this seems to be fairly well investigated and zeroed in on the OS. It appears there are some bare wires under the center console due to fraying. I will have to investigate pretty soon as it is very annoying. I am anxious to get started and dig in. This might be related to my rear mode selection knob up front not working. All the wires are right up under that console.

 

[RayVoy]

As Regulator said, usually caused by a bad ground.

If jarring the console makes it come and go, would not hurt to check the center ground, just alongside the console, under the dash. You need to lift the carpet.

 

[manuel_hero]

I am having the same problem on my 2008 envoy. It starts to buzz whenever someone shuts the back passenger side door. IIt is very annoying. It then begins to whine as the rpms increase. Any luck with yours?