PAC's OS-3 interface lets you replace the radio in select 2006-up GM vehicles while maintaining operation of the OnStar® system, turn signal clicks, and all warning chimes. The OS-3 will work with standard GM or premium factory-installed audio systems. Dimensions: 4-13/16"W x 1-1/16"H x 2"D.

The free listing tool. List your items fast and easy and manage your active items.