Upgrade your GM ride with the PAC Vehicle Wiring Interface, designed for select GM vehicles from 2004–2009 that use the 11-Bit data protocol and without OnStar. This compact, plug-and-play module lets you install an aftermarket head unit without sacrificing essential vehicle systems, delivering modern audio with minimal wiring effort.
Why choose PAC Vehicle Wiring Interface
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Plug-and-play installation: No complex splicing—this interface connects your factory harness to your aftermarket radio quickly and cleanly.
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GM 11-Bit compatibility: Built to work with the 11-Bit GM data bus found in 2004–2009 GM vehicles, ensuring accurate signal translation.
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Compatibility with non-OnStar configurations: Specifically intended for GM models without OnStar, enabling integration where OnStar is not present.
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Steering wheel controls support: Retains or enables steering wheel control compatibility with your aftermarket radio for safe, convenient operation.
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Preserves essential vehicle functions: Maintains chimes, warnings, and other factory signals while you enjoy your upgraded audio.
Take control of your in-car entertainment with the PAC Vehicle Wiring Interface. It delivers reliable signal conversion, easy installation, and seamless compatibility between your GM vehicle and a modern aftermarket head unit.
