Columbus Car Audio on X: "Custom built subwoofer enclosure and amp mounting in the cargo/trunk space of this 2016 Ford Focus RS. So yes, you can have awesome sound without giving up
Adding a decent subwoofer/amp to your Mach-E | Page 26 | MachEforum - Ford Mustang Mach-E News, Owners, Discussions, Community
2018 FORD Focus Rs 2.3 EcoBoost 5dr £28,700 27,911 miles Grey | JCT600
2016 2017 2018 Ford Focus RS oem sony door speaker set of four 6M2T-18808-FC | eBay
Ford VKL3Z-18808-A F-150 Audio Upgrade Kit Amp/Subwoofer Kicker
Amazon.com: NVX BE-FDFOCHBG3-VS102 Compatible Custom 500W RMS 10" Loaded Subwoofer Enclosure for 2012-2018 Ford Focus : Electronics
Sonic Punch High end Car Audio SQ System Ford Focus RS 400- Custom Boot Install, Custom A-Pillar Fabrication | The Ultimate Hi-Fi Experience / High End Car Audio / High End Home
Upgraded my Sony sub to a custom NVX unit, added a dedicated sub amp, and disabled Sony DSP using FORScan…it now sounds incredible!! : r/FocusST
RS Premium Stereo Upgrade – Mk3 Focus RS Club
Powered sub with Sony system? | Ford Focus ST Forum
DD Audio - 2016 Ford Focus RS sound upgrade by 514... | Facebook
Sold: Custom subwoofer box & 10" sub for focus ST RS hatchback $280 | Ford Focus ST Forum
Audio Upgrade in RHD RS (NOT the US version i.e. no factory sub/amp/FENG) | Ford Focus RS Forum