CRUX Radio Replacement Interface for Select GÇÖ04-12 GM LAN Vehicles with 11-Bit SystemsThe CRUX Radio Replacement Interface is designed for select GM LAN vehicles from 2004 to 2012 that use 11 bit systems, offering a reliable option for upgrading your factory radio. This interface provides a clear path to upgrading the radio while aligning with the GM LAN 11Bit system to ensure proper integration with the vehicles network. Compatibility: Designed for select GM LAN vehicles built from 2004 through 2012 with 11Bit systems. System