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
Getting ready to install Helix sub - Modifying your Golf R MK7 - VWROC - VW R Owners Club
Helix Sound Upgrade | Stealth GTI
VOLKSWAGEN HELIX SOUND SYSTEM - YouTube
Helix Soundsystem in GTI MK7.5 : r/GolfGTI
VW Helix Programming Unit Dongle Rental | DKS051419A - NEW v14 PROGRAMS ADDED! | eBay
Volkswagen Subwoofer Helix 480W Origineel VW Montage mogelijk
Just installed the Helix sub/DSP amp : r/vwgolf
Original Volkswagen - Plug & Play Soundsystem "300W Sinus" (Reserveradmulde) - 000051419B | TDO - Originale Fahrzeugteile