2001 - 2002 - 2003 S10 Blazer, Jimmy, Vans, S10, S15, Sonoma & More! Chevrolet & GMC OEM Radio AM FM CD Player Radio with Auxiliary Input for use with iPod, iPhone, mp3 Players, Satellite Radio & More! Part Number: 15091316 (Interchangeable with Other Select Part Numbers) Option Code: UN0. This radio requires dealer turn-on but is able to be put into a fully functioning test mode for 10 minutes at a time upon installation. Any GM dealer can unlock the radio. Please make plans before purchase. This unit is a Chevrolet S10 truck and van factory OEM AM FM CD Player Radio that has been upgraded with an aux input. You will not lose any functionality and the radio will have all factory OEM features! Appearance is great and function is perfect! This model came with select part numbers that are completely interchangeable, therefore you may receive a different part number. The radio you receive will be professionally remanufactured and upgraded as described. Please contact seller with fitment or function questions.