2009 - 2010 - 2011 - 2012 Chevy, Buick and GMC Traverse, Enclave, and Acadia AM FM mp3 CD Player Radio with Auxiliary Input for use with iPod, iPhone, mp3 Players, Satellite Radio, & More! Newer Plastic Chassis Version Part Number: 25941139. Compatible Part Numbers: 20918590, 20935116, 25941923, 25974803. Option Code: US8- Code Clear for Plug & Play functionality! This unit is a Chevrolet truck and van factory OEM AM FM mp3 CD Player Radio, that has NOT been unlocked and cleared for Plug & Play use!