2014 - 2020 VW GTI / GOLF 5 Channel Amp and Sub Install | MK7 - YouTube
Helix hifi upgrade review - Modifying your Golf R MK7 - VWROC - VW R Owners Club
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
Looking for a custom fit subwoofer - MK7 GTI | GOLFMK7 - VW GTI MKVII Forum / VW Golf R Forum / VW Golf MKVII Forum
Helix Sound package for Mk7/Mk7 5 Golf - Supply and Fit -
Focal Inside ISVW180 7" Component Speaker System for Select Volkswagen Vehicles - Creative Audio
VW GOLF MK7 12+ NEW STEALTH SUB SPEAKER ENCLOSURE BOX SOUND BASS CAR AUDIO 10 | eBay
Subwoofer Added on Stock Sound System | GOLFMK7 - VW GTI MKVII Forum / VW Golf R Forum / VW Golf MKVII Forum