Fits Chevy Silverado 2500HD/3500HD 2015 Stereo Harness Radio Install Dash Kit

This Package Includes the Following Items: 1 x 1 x Axxess GMOS-LAN-09 2014-Up GM OnStar Interface for Non-Amplified Systems 1 x Metra 40-EU10 Multi Application Antenna Adapter to Radio 2000-up NOTE - This package is designed to replace only Factory Standard Audio System. It will not work with Factory Premium Audio Sound. : Axxess GMOS-LAN-09 2014-Up GM OnStar Interface for Non-Amplified Systems: Provides accessory (12 volt 10 amp) Retains R.A.P. (Retained Accessory Power) Used in non-amplified systems or when replacing amplified systems Retains chimes Provides NAV outputs (Parking Brake, Reverse, Mute, and V.S.S.) Retains OnStar / OE Bluetooth Adjustable volume for chimes and OnStar High level speaker input USB updatable Retains balance and fade Applications Cadillac Silverado 1500 2014-up GMC Sierra 1500 2014-up Note: This interface will also work in vehicles listed above that are not equipped with OnStar. GMOS-LAN-09 Installation InstructionMetra 40-EU10 Multi Application Antenna Adapter to Radio 2000-up European Antenna Adapter Single Connector (FAKRA) For Dual Connector Applications Use The 40-EU56: