Speaker Wine?

[Thumper8302]

The alternator might be the case with mine too. I have noticed somedays the gauge goes down to about 8-9volts and then it shoots up to 14 volts kinda has a mind of its own, but never throws a check light to alert there an issue.

mine does that as well... just bought my 01 yukon less than a week ago.. when i stop at a stop sign or a stop light ill notice my voltage and rpms drop... im not used to the vortecs yet.... been drivin a 90 suburban the last 5 years... ill prolly have the alternator tested here in a few days..... if thats the case im definately gonna add a bigger alternator when i swap my stereo over...

 

[cmorris]

09 denali xl with the same problem

I just purchased an 09 xl denali and have the same problem with factory nav unit?????

 

[ASUalum]

I just purchased an 09 xl denali and have the same problem with factory nav unit?????

Me too! Sounds like a real high pitch that only a dog would here lol (I guess I'm a dog because I can definitely hear it). Sad thing is I just picked it up today.

I'm going to take it to the dealer and have them check it out (I'll mention the alternator).

 

[cmorris]

Me too! Sounds like a real high pitch that only a dog would here lol (I guess I'm a dog because I can definitely hear it). Sad thing is I just picked it up today.

I'm going to take it to the dealer and have them check it out (I'll mention the alternator).

Let me know what they say if you dont mind, I am going next week as well!!!!
thanks

 

[Derf]

My 2008 does not have the wine. I can hear very low music in the back ground when the radio is off and the NAV is on.

 

[blaqout]

When I installed my aftermarket radio, my speaker whine went away. So, I figure it was either the factory stereo or a bad ground (loop) in my Overhead DVD which I re-routed the ground and 12v to the 12v ACC behind the new radio.

 

[07Denali]

Any whine like that is likely an alternator problem in a newer (07+) truck. That diode that goes bad causes a barely audible whine or hum in the audio system. I have had it happen in several GM vehicles that I have owned.

 

[LTZboy]

I finally got a chance to bring mine in for service and they said they could not duplicate the problem. I told them to keep the car until it was fixed. I guess I need to tell them to check the alternator. Anyone else have a hard time getting the techs to hear the whine?

 

[preston]

I haven't had mine looked at yet, but I have a speaker whine only when in CD mode. Thought that was kind of weird.

 

[cmorris]

I had mine checked and they replaced the alternator, the whine is very low and you really have to listen for it but it is better.
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