2003 - 2004 - 2005 Various Chevy & GMC Truck Radio AM FM CD Player with Aux Input Upgraded with iPod Aux In directly on the face! Part Number: 10357894. Compatible Part Numbers: 15138488, 15104155, 15184932, 15198700, 15756188. This radio will need to be unlocked by a dealer and paired to your truck. Please see below for more details. This is for a Chevrolet truck, S10 and van factory OEM AM FM CD Player Radio that has been upgraded with an auxiliary input for use with Android Phones, MP3 Players, iPod, iPhone, Satellite Radio and more! You will not lose any functionality when the auxiliary input is in use and the radio will have all factory OEM features! Please confirm: that this is the radio your vehicle requires as some of these vehicles used more than one style of radio. This part number came factory in various Chevy & GMC full size trucks. Feel free to give us a call with compatibility questions. The Aux Input is a snap to operate. Literally! Just plug in your 3.5mm cable and it will play in full crisp clean quality. When you want to listen to the radio again simply unplug the cable! The audio is full quality and takes advantage of all sound controls on the radio. Forget those shoddy FM transmitters and listen to music the way it's supposed to sound! If you have any questions about the operation of the jack please feel free to call! This radio has been cleaned, upgraded, serviced as needed, and thoroughly checked. Please Note: This radio will need to be unlocked upon installation in your vehicle. It can be put into a fully functioning test mode for 10 minutes at a time but will need to be taken to a dealer for permanent pairing. This process varies greatly from dealer to dealer, please verify cost with your local dealer before purchase.