Go to www.installdr.com .
buy the hanes repair book at any auto part store it cost about $18.00 it has the color codes you need
you need the proper wiring harness to change the stereo in a cobalt or the security features will kick in once you have the proper harness you just have to match wires
what are the stereo wire color codes for a 2002 Chevy impala LS
Here is a site on eBay http://cgi.ebay.com/Stereo-Wire-Harness-OEM-Chevy-Monte-Carlo-86-87-88_W0QQitemZ110032845206QQihZ001QQcategoryZ64579QQrdZ1QQssPageNameZWD1VQQcmdZViewItem This is a reverse wire harness. Plug it into your car's original harness that went to the factory stereo. The wires that come out of the harness are labeled so they can be easily connected to your new stereo. If you don't want to order the harness, the link has the original color diagram, so if you think you can manage, don't order the plug and just look at the colors and what they coorespond to and plug them into your new stereos harness. Also on eBay or many other places, there are stereo adaptors. This will hold your stereo and it will look much better than a do it yourself job. Plus they screw into the original holes. Hope this helps.
Go to your local Canadian tire and buy a plug that goes from stereo harness to your stock harness!
black
I have a Lincoln VII LSC installing a Jensen stereo, have one harness with amplifie. I need the diagram on the color codes for the wires to the stereo and the harness #CK-WHFD2
color code for 2000 Malibu is under lid on spare tire carrier in trunk.
http://www.installdr.com/QuickWiring.html
2000 chevy impala sterio wireing color codes
dont need it
Go here http://www.modifiedlife.com/1988-chevrolet-caprice-stereo-wiring-color-codes/