2002-2003 Chevy Trailblazer GMC Envoy Radio AM FM CD w Aux mp3 Input - 15169545 Professionally Remanufactured OEM Unit Modified to include Auxiliary Input in the face for use with iPod, iPad, Android, Satellite Radio, mp3 Players and more! Dealer unlock required Features: AM, FM, CD, Aux Input, Auxiliary Functionality, RDS, Clock, Hour Button, Minute Button Technical support provided by 1 Factory Radio