Metra 70-2103 Receiver Wiring Harness
Crutchfield Customer Review (What's this?)
This product works flawlessly with my Chevy Cobalt. Everyone told me that this was the adapter i needed. I am quite happy with how easy it was to connect everything and the harness works like a charm. I would like to see it get added to the list for Chevy Cobalts, because it is a proven adapter that works, I can not say for the newer models, but my 2006 works great with it.