Reddit reviews PAC C2R-GM11B Radio Replacement Interface for Select 2004-up GM LAN Vehicles with Out OnStar

Retains all safety warning chimesAmplifier turn-on output wire, Provides 10-minute RAP accessory outputSingle wire output for steering wheel control moduleRadio Replacement Interface for Select 2004-up GM LAN 11-Bit Vehicles without OnStarPlug and play interfaceMay also be used on vehicles with OnStar if OnStar is not serviced or is unwantedProvides an accessory turn on wireRetains the factory Retained Accessory Power (RAP) featurecompatible with Chevrolet Cobalt 2005 - 2006, compatible with Chevrolet Malibu 2004 -2007, compatible with Chevrolet Malibu Classic 2008, compatible with Chevrolet Malibu Maxx 2004 - 2007, Pontiac G6 2005 - 2009.