CRUX (SOOGM-16) ONSTAR® RADIO REPLACEMENT INTERFACE FOR GENERAL MOTORS LAN 29-BIT VEHICLES W/ BOSE AMPLIFIED & NON-AMPLIFIED SYSTEMS The CRUX SOOGM-16 is designed to allow for the installation of after-market radios while retaining functionality of OnStar, Bose® Amplified and Non-Amplified Systems, Chime and Accessory features in General Motors LAN 29-Bit vehicles. Also retains steering wheel controls. FEATURES: Easy Plug-and-Ready Connections. Retains Steering Wheel Controls via built-in, pre-programmed interface. Retains Factory Bluetooth in Vehicles 2008-upwards if equipped with new OnStar Device. Retains Factory OnStar. Retains Factory Warning Chimes. Works with Non-Bose and BOSE amplified systems. Retains Rear Seat Entertainment, Audio/Video. Requires Cable #CRUX2333A (sold separately). Retains Back-up Camera. Notes : Does not retain the factory XM.