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
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Volkswagen VW Original Helix Soundsystem Plug & Play trunk 300 W Sinus : Amazon.nl: Electronics & Photo
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VW Plug & Play Soundsystem Helix 300W Tuning 000051419 B Polo 6R 6 Lautsprecher 4039378722814 | eBay
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Helix Subwoofer - Rectangular Or Spare Wheel? - Page 2 - Modifying your Golf R MK7 - VWROC - VW R Owners Club
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