Metra AXDIS-GM13 Data Interface with SWC Cadillac STS 2005-2011

The Metra Axxess AXDIS-GM13 is a vehicle-specific radio replacement data interface designed for 2005–2011 Cadillac STS models equipped with factory amplified audio systems. This interface allows seamless integration of an aftermarket head unit while retaining critical factory features such as retained accessory power, steering wheel controls, warning chimes, and factory telematics functions. It also provides essential navigation-related outputs needed by modern aftermarket radios. With built-in data communication and a micro-USB update port, the AXDIS-GM13 is ideal for professional installers and experienced enthusiasts seeking a clean, OEM-like integration without sacrificing vehicle functionality.

KEY BENEFITS

• Retains steering wheel audio controls, maintaining factory control functionality with aftermarket head units
• Preserves retained accessory power (R.A.P.) to ensure proper radio shutdown behavior
• Maintains factory warning chimes for OEM driving alerts and notifications
• Provides navigation outputs including parking brake, reverse, and vehicle speed signal
• Supplies a 12-volt accessory output rated at 10 amps for reliable head unit power
• Retains factory balance and fade control in amplified sound systems
• Supports factory OnStar and OEM Bluetooth functionality when present
• Micro-USB port allows firmware updates to maintain compatibility with newer radios

TECHNICAL SPECIFICATIONS

• Weight: 0.56 lb
  
• Power Handling: 12 V accessory output, 10 A
• Interface Type: Data interface with steering wheel control retention
• Vehicle Compatibility: Cadillac STS 2005–2011
• Factory System Type: Amplified audio systems
• Retained Features: Steering wheel controls, warning chimes, balance & fade, retained accessory power, factory telematics
• Update Method: Micro-USB firmware update port

INSTALLATION & COMPATIBILITY

The AXDIS-GM13 installs inline between the factory wiring harness and the aftermarket radio, enabling full data communication with the vehicle while simplifying installation. It is specifically engineered for Cadillac STS models with factory amplified systems and is not intended for non-amplified configurations. The interface is compatible with most aftermarket head units that support external steering wheel control inputs. Professional installation is recommended to ensure proper data initialization, SWC programming, and correct routing of navigation outputs. Ideal for sedan installations requiring OEM feature retention with modern multimedia receivers.

FAQS

• What is the AXDIS-GM13 interface used for?
  AXDIS-GM13 is a data interface that supports aftermarket radio installation in select GM vehicles while retaining factory electrical and data-controlled features.
• Why is AXDIS-GM13 necessary in newer GM vehicles?
  Newer GM models rely on CAN data systems. This interface converts digital signals to ensure proper radio power, alerts, and system operation.
• Does AXDIS-GM13 retain factory warning chimes?
  Yes, it helps maintain audible warning chimes and alerts, ensuring the vehicle remains safe and compliant after a radio upgrade.
• Should AXDIS-GM13 be professionally installed?
  Professional installation is recommended to ensure correct data connections and avoid system errors, especially in vehicles with complex electronics.