RTA Fabrication - Here's the stacked subwoofer/ amplifier rack installed in this VW Touran. There's an Audison Bit One HD, Hertz Mille Legend 10” subwoofer and Hertz Mille Power 4 and 5
Alpine - SPC-600G7 Subwoofer System for VW Golf 7, Golf 6 and others
Soundsysteem 480 Watt, incl subwoofer in reservewielruimte - Volkswagen webshop
Amazon.com: Add A Bass Subwoofer Amplifier Adapter Interface w/Amp Remote Wire to Factory OEM Car Stereo Radio for select VW Made for Jetta Golf CC Passat EOS Tiguan etc- Vehicles listed below :
JL Audio 2011-2018 Volkswagen Jetta Subwoofer Stealthbox | Quality Auto Sound | Western United States
Discontinued Obsolete SKU MTX Audio
4-way active setup in a VW Polo, with a 15" subwoofer - Team-BHP