Re: Stereo keeps changing volume randomly autonomously?

On 2021-05-28 10:44:29 +0000, Yousuf Khan said:
> 
> So the stereo system in my 2008 Tribeca has started to get a mind of 
> its own. For some reason, the volume goes up or down on its own, 
> without you touching the controls. You can see the volume level 
> changing on its digital display, it'll hunt around from 0 to 30 or 
> anywhere in between, except where you last left it. When this happens, 
> you can still manually adjust the volume with either the volume knob on 
> the console or on the remote volume control on the steering wheel, but 
> it won't stay there for long. Problem started a couple of days ago, and 
> it seems to start happening maybe after 5 minutes after starting the 
> car. What could possibly be causing this problem?
> 
> On a possibly related note, the car's battery has had some corrosion on 
> it, possibly some cells have gone bad. Could this have anything to do 
> with it? Just throwing that out there as a random observation, I'm not 
> saying that this is the cause, just asking.
> 
> 	Yousuf Khan

Probably there's an issue with the volume knob itself, possibly just 
dirt or dampness underneath or it could be a worn / eroded connection 
underneath.

If it's a radio with an automatic-volume linked to the car's speed, 
then it could also be an issue with that speed sensor system. Possibly 
that "5 minutes" delay is due to something warming up before failing.

It's very doubtful the battery itself is the cause, but it could be 
another sign that there are corrision problems elsewhere too ... 
possibly just that muck is flaking off the battery is being blown 
elsewhere.