Facilitates replacement of a factory radio while retaining all factory safety warning chimes and audible turn signal indicators. Compatible with amplified and non-amplified audio systems.

• Retains all safety warning chimes
  
• Provides 10-minute RAP accessory output
  
• Compatible with all audio system levels
  
• Amplifier turn-on output wire
  
• Single wire output for steering wheel control module
  
• Retains audible turn signal indicators
  
• Provides illumination wire
  

Compatibility:

•       Does not retain OnStar. For OnStar retention, please use the OS-311b