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Diy 2 12" subwoofers installed behind rear seat super crew cab
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F150 ford extended cab box sub single 2003 2000 large ported sealed netaudioF150 supercrew 09-18 ported enclosure for (6) 6.5" subwoofers Seat behind cab rear crew super subwoofers f150 ford installed truck diy f150forum.
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![Ford F150 Extended Cab Sub Box Ford F150 Extended Cab Subwoofer](https://i2.wp.com/netaudio.com/wp-content/uploads/2012/06/F150ExCab00-06-640x480.jpg)
![Custom under the seat sub box for 2010+ SuperCrew. - Ford F150 Forum](https://i2.wp.com/cimg1.ibsrv.net/gimg/www.f150forum.com-vbulletin/2000x1130/80-img_20141008_140511_7273ab1741aef182de8e1bd971b319b4f57ea0f8.jpg)
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![diy 2 12" Subwoofers installed behind rear seat Super Crew cab - Ford](https://i2.wp.com/cimg1.ibsrv.net/gimg/www.f150forum.com-vbulletin/2000x1333/80-160122_untitled_0019_a7c693bc5bda34575d3847f7cd6d4e97c833b6e7.jpg)
![F150 SUPERCREW 09-18 PORTED ENCLOSURE FOR (6) 6.5" SUBWOOFERS - Sound](https://i2.wp.com/cdn2.bigcommerce.com/server1500/2tnbr/products/380/images/797/supercrew6.5__12213.1560118633.1280.1280.jpg?c=2)