2013 - 2018 Ford Focus ST / RS Amp and Sub Install - YouTube
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2012-2018 Ford Focus - Custom 500W RMS 10" Loaded Subwoofer Enclosure — NVX
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NVX nsp65_2, met-725602_2, met-825605_2 (15-18-ford-focus-spkg)
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DIY Amp/Sub Install, with minimal impact to factory equipment. | Ford Focus RS Forum
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Amazon.com: Add A Subwoofer Amplifier Wire Harness Comes with an Inline Converter Fit for Ford 2011-2018 Factory Radio : Electronics
Stealth Ford Focus Subwoofer Enclosure
2012-2018 Ford Focus
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Stealth Ford Focus Subwoofer Enclosure
Stealth Ford Focus Subwoofer Enclosure
