I own a 2005 chevy cobalt (base) (no pioneer upgrade/onstar). I bought a pioneer DEH-x5500HD and dont know which harness to buy.
you buy the narness that fits your vehicle. being a 2005 chevy cobalt without onstar. the harness fits the car. the harness for the radio itself will be color coded to fit the harness for the car. M.E.C.P. Certified Installer since 1997
