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Chevy Silverado and GMC Sierra Audio/Radio



  • i don't believe there are RCA jacks on these, but you can tap into the speaker wires to send signal to the amp. had an amp installed in my truck and that's how they did it.
  • I don't have a subscription to XM radio with my 2011 GMC Sierra, instead we have a portable XM radio that we move from vehicle to vehicle. When I plug this portable radio into the Aux port, sound only comes out of the left front speakers (drivers side). Thus sound for music is not good and passenger can't hear it so well unless too loud for driver. Is this normal? I would expect the sound to come from all speakers...
  • jmcfwjmcfw Posts: 1
    Is it possible to swap the stock radio in our 2010 Silverado for the one in our 2011 GMC Sierra and if it is, how do we do it?

  • rgarga Posts: 2
    edited January 2012
    I have a new 2011 Seerra PU with DVD player, onstar and GPS map all built into the radio and screen. I use an Ipod Nano 8g to play most all my music. I have several other devices that play these same Ipods. Including and alpine radio plus the stock radio on my motorcycle. The motorcycle displays the songs and gives me complete control over the Ipod like this radio does. However in my truck about 1/3 of my songs will not play. it is just nothing for the time each song is suposed to play. All my songs are ripped with Itunes and are the AAC audio. Any Ideas what I need to do. The mechanic thinks I need to convert to a differant format or codec but can not tell me which format.
  • glen_lglen_l Posts: 1
    I'm having the same issue with my 06 envoy after changing the battery. I've had it happen a couple times before when i've boosted it where after the boost the radio wouldn't turn on but it would correct itself after i start the engine two or three more times, I'd always assumed that it was some kind of power save feature where the on board computer would detect a low battery and disable the stereo until it had a chance to charge (never really looked into it, might have just been a glitch) but I changed my battery a few weeks ago and it hasn't come back to life yet. Like you said, if i hit the power button the back lights come on, if i hit info the clock comes up for a bit and it has the right time and I can load and unload cd's just fine. I've noticed the security system indicator light doesn't flash either so maybe it's not communicating with whatever unit it compares VIN's with to make sure it's the right head unit. I'm trying to exhaust all options before i bite the bullet and bring it in. Have you had any luck with yours?
  • Per page 7-36 of the owner's manual, it looks like the supported file types are those with an .mp3 or .wma file extension, or. AAC files stored on an iPod.

    Hope this is helpful for you!
    GM Customer Service
  • I understand wanting to find the root cause on your own, and wish you luck! I wasn't able to find any trouble-shooting resources on my end.

    If you do end up having to go in, let us know!
    GM Customer Service
  • rgarga Posts: 2
    all my songs are the AAC type. I convert all when I bring them into I-Tunes and then store them on the i-pod. I-Tunes used to say something about converting to a higher bit rate or something but it just asks if I want to create AAC version now with all the updates it has gone thru.
  • 07 GMC 2500 SLE
    Same issue, almost. Mine goes in and out when it rains or the humidity gets really high. Once it dries out its fine, only the front tweeters work when this happens. Drives me crazy, any and all help appreciated.
  • Have you tried formatting all of them in the other two to see if it makes a difference?
    GM Customer Service
  • While I cannot advise on technical aspects of the vehicle, I am available to assist in working with a dealership. I wish I could help more right now, and hope that you are able to get some insight from other community members.
    GM Customer Service
  • AM/FM disk factory radio powers up, display but no audio. A faint high level is heard on high volumn setting. Dealer wants $110 to hook up a "diagnostic computer" and go from there.
    This problem started 6 months ago with short beginning outage and got worse to nothing now. Help
  • I understand that diagnostic fees can be difficult; if you do end up deciding to work with your dealer, I just wanted to make sure you knew we were available to you. All the best!
    GM Customer Service
  • jtempleton14jtempleton14 Posts: 5
    edited April 2012
    I have the same problem with my 08. It started with the chime then a few speakers. Now all but the A pillar tweeters work. One rear speaker comes on sometimes but this is no fun. I have an extended warranty on mine but i dont know if it covers this.
  • gmcustsvcsarahgmcustsvcsarah Posts: 1,964

    Was your extended warranty one of our GMPPs (General Motors Protection Plans)? If so, I can look into what is covered for you: please send us the last 8 of your VIN to

    GM Customer Service
  • no it a compainy my dealer uses. Dont know the name. My dealer is Carl Black in Kennesaw Ga.
  • gmcustsvcsarahgmcustsvcsarah Posts: 1,964
    I'm sorry - I unfortunately don't have access to third-party service contract information. I would recommend contacting your dealership to discuss the terms of the contract.

    GM Customer Service
  • crc5crc5 Posts: 1
    I'm interested to see the outcome of this I have the same problem from my 2008 GMC Sierra. Any updates?
  • sroma22sroma22 Posts: 1
    Hi, Just wondering if you ever fixed your problem with the sound from tweeters only? im having the same issue in an 07 avalanche. Thanks, Steve
  • The dealer told me all my speakers had shorted out. They replaced the door speakers and it is working. I thought it was the radio but it was the speakers.
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