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Chevy Silverado and GMC Sierra Audio/Radio

79 messages,  Last post on Nov 16, 2009 at 4:14 PM

You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram

What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Audio, Truck


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#17 of 79
Disabling the "Auto shutoff" feature for the radio by finger_lakes
Jun 20, 2007 (4:58 am)
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I have a 2007 Sierra Classic and I hate the fact that there is no Accessory position for the key. I want the radio to stay on when I shut the truck off, even if I open the door.
 
Is it a simple matter of rewiring the power to the radio direct to a constant 12v?
 
Any information, especially radio wiring info would be appreciated. Thanks.
#18 of 79
wattage per channel by smcduffie
Jul 01, 2007 (1:50 pm)
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I have to install new 5.25" speakers in my doors. I was just wondering what the wattage output is so I'll know what minimum wattage speakers to purchase.
 
Thanks for you help.
#19 of 79
Re: wattage per channel [smcduffie] by jnt
Jul 09, 2007 (5:34 pm)
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Replying to: smcduffie (Jul 01, 2007 1:50 pm)

Some radios can drive 25W/channel to 2 Ohm speaker load directly. Some only capable of driving 4 Ohm only. In that case, the maximum power output drops significantly (10W per speaker for example)
 
But all of that with a disclaimer: full volume setting and may be 10% distortion. Some cheap radio could not drive 2 Ohm speakers but most can do 4 Ohm. Normally if you set your volume 1/2 way, you're lucky to get 1W output/speaker.
 
In addition, radio has Distortion Limiter: it will back volume down or even shut down if it is overheated and/or could not drive Low Impedance (2 Ohm) speaker.
 
So radio is also a limiting factor. But if you want safe option, the new speakers should the same Impedance (4 Ohm or 2 Ohm) as the ones you replace. Typical OEM speakers are the cheapest things they could find in China or other low cost countries. Any decent high performance After-market speakers will improve the sound greatly even with the same load spec. The difference is the Audio frequency response: cheap OEM speakers have little BASS or TREBLE and more distortion.
 
If your audio system has the external amplifier like Bose, infinity, Pioneer... then the limiting factor is not the radio head anymore. It is now the Amp that needs to match your speaker loads
 
jt
 
jt
#20 of 79
Burning CD-R discs with Windows Explorer by jsorensen
Jul 15, 2007 (1:19 pm)
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I can't get my 6-CD player to read my music data discs. I burn them with Windows Explorer as file folders for albmuns and within each folder are several .wma files. When I put the disc in the player, it responds by saying it can't find anything on the disc. Any solutions?
#21 of 79
Re: Burning CD-R discs with Windows Explorer [jsorensen] by obyone
Jul 15, 2007 (1:36 pm)
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Replying to: jsorensen (Jul 15, 2007 1:19 pm)

You need to convert the wma files to wav for your car stereo to recognize them.
#22 of 79
Re: Burning CD-R discs with Windows Explorer [obyone] by kcram HOST
Jul 15, 2007 (4:50 pm)
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Replying to: obyone (Jul 15, 2007 1:36 pm)

or as mp3s... and most important, without folders and subfolders. Most car stereos have no idea how to open folders.
 
kcram - Pickups Host
#23 of 79
2007 Sierra Radio Change out by hawkeye6
Sep 19, 2007 (6:10 am)
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#24 of 79
2007 Sierra Radio Change out by hawkeye6
Sep 19, 2007 (6:10 am)
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My company just bought 2 new 2007 Sierra's. One is a Denali and one is a plain jane 1500 2wd. The Denali was bought with the GPS/rear view option but the dealer did not have it in stock at the time, so the dealer gave us a new Denali with the standard 6-disc changer/mp3 accessory plug in with the idea that when they received the GPS stereo they would switch it out. Well, that all came through and now we want to put the original Denali stereo into the other 2007 1500 because that stereo is AM/FM only.
 
We took switched the stereos ourselves and when we turned the power on, the stereo says "locked". I took it to a local dealer to have them tell the computer that it has a new stereo and they couldn't figure it out, like the truck was too new for their equipment.
 
Can anyone give me any help on how to get the switched out stereo to unlock?
#25 of 79
Re: 2007 Sierra Radio Change out [hawkeye6] by jnt
Sep 27, 2007 (5:34 pm)
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Replying to: hawkeye6 (Sep 19, 2007 6:10 am)

Well, look like you need to go to another dealer and pay them to erase the VIN info on the radio that shows "LOC". After that, this radio will work again.
 
Radio, when first installed into vehicle, would store the vehicle VIN info into its computer (radio computer). Now if you put this radio into another vehicle, the radio would try to compare the stored VIN info with the vehicle's VIN. If they do not match, radio will lock up. The dealers should have tool to do that for you.
 
jt
#26 of 79
Swapping out a cassette palyer for a cd player by danno4
Dec 06, 2007 (7:21 am)
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I am new to this forum and just bought my first Chevy silverado . It's a 1995 4x4 with crew cab and 5.7l engine. I would like to change out the factory installed casette player with a factory cd player. I called a local dealer and they said if I gave them the number off the back of the radio , I may be able to do a swap if it is compatible. Question is, how do I get the radio out? Thanks.
Dan

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