The Axxess AXDIS-GM13 is a premium vehicle-specific data interface designed for 2005–2011 Cadillac STS vehicles with factory amplified systems. This interface allows seamless installation of an aftermarket radio while retaining critical factory features including steering wheel controls, OnStar®, OEM Bluetooth®, retained accessory power, factory chimes, and navigation outputs. Featuring patented auto-detect technology and built-in steering wheel control retention, the AXDIS-GM13 simplifies installation while maintaining factory functionality and vehicle integration. Ideal for modern radio upgrades including Apple CarPlay and Android Auto multimedia systems. Features Designed for amplified factory audio systems Retains steering wheel audio controls Retains OnStar® functionality Retains OEM Bluetooth® compatibility Retains factory warning chimes Retains balance and fade controls Provides retained accessory power (R.A.P.) Provides navigation outputs: Parking brake Reverse trigger Vehicle speed sense (VSS) Patented auto-detect radio technology Micro-B USB updatable firmware Plug-and-play vehicle-specific installation Compatible with major aftermarket radio brands Specifications Vehicle Compatibility: 2005–2011 Cadillac STS System Compatibility: Factory amplified systems only Accessory Output: 12V / 10A switched accessory power Steering Wheel Control Support: Built-in SWC retention Auto-detect radio configuration Firmware Updates: Micro-B USB updatable Interface Type: Data interface with SWC retention Retained Factory Features Steering wheel controls OnStar® OEM Bluetooth® Retained accessory power Factory chimes Balance & fade functionality