**Map Update & Compatibility** The Grayda A15 Navigation SD Card provides the latest maps and points of interest across all 50 U.S. states and hundreds of cities, counties, and metropolitan areas in Canada, and is compatible with and can replace previous map database versions from A4 through A14.
**Installation Steps & Precautions**First, turn off the vehicle, remove the old navigation card, and insert the new Grayda Navigation SD Card. After starting the engine, the “Navigation” icon should appear in the top-right corner. Before installation, please check whether the Ford/Lincoln SYNC system's central processor (CCPU) is compatible or requires an upgrade. For detailed steps, refer to Image 6.
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