CRUX CRUX Radio Replacement Interface for Select '00-'13 GM Class II Vehicles with SWCThe CRUX Radio Replacement Interface is a dedicated solution for upgrading the radio in select GM Class II vehicles equipped with steering wheel controls, offering a clean and compatible setup during an audio upgrade. Brand: CRUX Product Type: Radio replacement interface Compatibility: Select GM Class II vehicles from 2000 to 2013 with steering wheel controls (SWC) Purpose: Dedicated solution for upgrading the radio in these models Installation