I have a 2008 Silverado ls and I had problems with not hearing the turn signals or warning beeps when you leave your keys in ignition. I did some checking and found the door speaker on the drivers side was not working, which all these alarms are designated to come through. I ordered some big kick butt speakers installed them and have got everything working again.
The speakers GM installed were cheap.....

 

What speakers did you put? Where they a direct fit?

 

Do you guys know the diameter of the front speakers...?

 

Well I ended up going to the dealership to see if they could fix it under warranty. All they did was replace the 2 front door speakers. Since I am only under extended warranty, I had to pay $100. Looking at the parts detail, they are only $40 a piece speakers! I would have rather paid $100-$150 for a decent pair of speakers instead of GM stock crap. I really figured this was an internal radio unit problem. Oh well, I'll take my loss and move on. At least the speakers work, for now.

 

The ones I replaced mine with was a set of Alpines. If you go to Crutchfield.com and fill out what kind of truck or car you have they pull up what speakers are compatible with it. I am thinking the size where 2 way Alpine 6000 series speakers. They were a direct fit. But you can buy Kicker, Kenwood, etc etc..

 

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6-1/2"

If you have any additional questions, please feel free to contact me.

Louis
GM Customer Service

 

im still dealing with mine.. its coming up on summer and im going to have to do something.. i did however notice something funny last night. i was pulling down a steep grade from a friends driveway and my speakers upfront that have been out for so long started popping on and off just sitting like that. im sure it has to be a short but if im pulling the door panels off to fix it im replacing them with something good!!!

how hard it is to get the door panels off for those of you guys that have done it? anything to watch for like clips or pins that might be a problem when getting it back on correctly?

 

I had never removed a door on this truck before and I watched some youtube's on that Crutchfield.com it has photo's of how to remove a door. There is not much to it.

 

I am having similar problems with my 08 crew cab radio. I noticed the right front speaker not working several months ago. It works some of the time. Now the left front speaker is malfunctioning. Also, when I used the hands free calling the other day I cold barely hear the onstar assistant.

 

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It sounds as if there is a short somewhere. Have you had the system inspected?

Louis
GM Customer Service