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Hey everybody, I have noticed many people asking about DIY's for normal routine maintenace stuff here. Haynes FINALLY came out with the repair manual for the Cobalt and G5. It is part number 38017, and your local parts stores should be able to order them for you. SOme of the ones near me FINALLY started to actually stock them. It also has basic wiring diagrams in the back
 

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Do not know about the Cobalt wiring since the radio is tied into a few different systems. Maybe one of the more experienced people here could answer that one.
 

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Yes, I have had mine for a year, but I had to special order right from Haynes. Some of us are not lucky enough to live in an area that gets all the cool things first. And Autozone and Advance are the last ones to get things and it is a b$#ch to get them to order stuff.
 

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I saw advertised along side the Haynes a Chilton...and was only a couple bucks more and usually they have more info.
 

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If possible I usually buy both books, as one is stronger than the other is different aspects. One has better pics than the other, one descibes better than the other. In the past Chiltons never had wiring diagrams, they may have changed and started printing the wiring diagrams though.
 

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when wiring a new deck do i just match the wires with the new harness? or is there a different way?
Usually, you just buy a wiring harness from Best Buy or whatever store and that will plug into the harness from your factory head unit. Then you match the wires to the new head unit (color for color). You'll need to hook up the red, black, and yellow for power, ground, etc. Then there will be 8 more wires to hook up (2 for each speaker). That should be all you need to do...unless you're running an amp, then it will be different.

I'm assuming this is what you were asking since you mentioned a new harness. I haven't done anything with the Cobalt stereo except upgrade from the base radio to an MP3/XM stock stereo.

Hopefully that helps and sorry to be off topic.
 

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Usually, you just buy a wiring harness from Best Buy or whatever store and that will plug into the harness from your factory head unit. Then you match the wires to the new head unit (color for color). You'll need to hook up the red, black, and yellow for power, ground, etc. Then there will be 8 more wires to hook up (2 for each speaker). That should be all you need to do...unless you're running an amp, then it will be different.

I'm assuming this is what you were asking since you mentioned a new harness. I haven't done anything with the Cobalt stereo except upgrade from the base radio to an MP3/XM stock stereo.

Hopefully that helps and sorry to be off topic.
well best buy told me that i would have to pay 100 bucks for some harness that GM is making. so im selling my shit now. so i can get my exhaust cause id rather have that then some subs
 

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The harness they are trying to sell you allows you to keep the factory chimes for seatbelt, open door, turn signal chime, OnStar (if you have it), etc. You can get it for $60 from Crutchfield and if you look around online I believe it can be had for less than $40. I think you can find a basic harness that will work, you just won't have OnStar or the chimes. That one should be around $25 at most...less online.

Just letting you know.
 
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