The PAC Vehicle Wiring Interface is a wiring solution designed for select GM models from 2004 to 2009, featuring 11-Bit systems without OnStar. It provides a dedicated path between your vehicle’s wiring and aftermarket components to help maintain reliable operation and clean integration in compatible GM models.
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Compatibility: Works with select GM vehicles from 2004–2009 that use an 11-Bit system and do not have OnStar.
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Brand: PAC Vehicle Wiring Interface
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Design purpose: A dedicated connection pathway between your vehicle’s wiring and aftermarket components to maintain reliable operation and clean integration in compatible GM models.
Using this interface allows you to connect aftermarket devices without compromising the GM vehicle’s electrical system. It supports stable operation of the 11-Bit configuration and simplifies installation in eligible 2004–2009 GM models lacking OnStar.
