📄 System overview, OnStar
📄 System overview
📄 Principal components
📄 Brief description
📄 Main unit inputs
📄 Main unit inputs, bus
📄 Main unit outputs
📄 Main unit outputs, bus
📄 Main unit
📄 Main unit power supply
📄 Main unit ground
📄 Bus communication
📄 Audio system
📄 Telephone connection