VW Retrofit LTD - Golf MK7 TDI upgraded with Helix subwoofer kit. 2h ish job including fitting and programming sound parameters. Quite good results from such a small box 😊 | Facebook
2018 VW GTI SE Ep.187: Prepping for the Helix Subwoofer Installation - YouTube
Installed Helix Subwoofer Today. Keep telling myself no more mods 🥺 : r/GolfGTI
fender and helix sub | GOLFMK7 - VW GTI MKVII Forum / VW Golf R Forum / VW Golf MKVII Forum
Helix Esprit E12W Shallow-mount 12" subwoofer with dual 2-ohm voice coils at Crutchfield
VW Helix Soundbox subwoofer for Sale in San Diego, CA - OfferUp
Helix Soundsystem in GTI MK7.5 : r/GolfGTI
2018 VW GTI SE Ep.188: Installing the Helix Subwoofer Kit - YouTube
2018 VW GTI SE Ep.188: Installing the Helix Subwoofer Kit - YouTube
Goodbye Helix -> OEM+ Sound System Build Log | GOLFMK7 - VW GTI MKVII Forum / VW Golf R Forum / VW Golf MKVII Forum
Helix Subwoofer Wheel Mounted kit - VW Retrofit
Helix Plug & Play Sound System/Subwoofer 000051419B Original VW | eBay
VOLKSWAGEN HELIX SOUND SYSTEM - YouTube
Helix Sound Upgrade | Stealth GTI
Helix Subwoofer - Rectangular Or Spare Wheel? - Page 2 - Modifying your Golf R MK7 - VWROC - VW R Owners Club