If you are looking for a free online diagram it will be very hard to find. If you want a complete wiring diagram you should just by a chilton or heynes manual from an auto parts store.
you could try to search online but most likely wont be able to find a free online manual.
www.the12volt.com
The wiring diagram for the radio harness of this car can be found in its maintenance manual. It can also be found in the repair manual or gotten as a print out from an auto part store.
call the dealer
buy a wiring harness adapter from your local Walmart or Radio Shack
Join www.trailvoy.com Posted in the resources section
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
go to wal mart and get the wire harness it will tell you what goes where.
You can find a radio wiring harness for your 1997 Ford at most auto-parts stores. Many electronic stores will also have the radio wiring harness.
radio wiring diagram
ebay, from 9.99 to over 30.00 bucks
autozone.com ,,,,,,,click "Repair Info", then click "Repair Manules".
Try these out ...... Radio 12v pink + radio harness Radio Ground black - radio harness Radio Ignition pink + radio harness Radio Illumination blue/black + radio harness Factory Amp Turn-on N/A Power Antenna green/black + radio harness LF Speaker +/- blue/red - yellow/black +,- radio harness RF Speaker +/- black - yellow +,- radio harness LR Speaker +/- brown - white +,- radio harness RR Speaker +/- green/orange - blue/orange +,- radio harness