OEM Front Door Woofer Sackbut Subwoofer Bass Speaker for VW Golf 6 MK6 Passat CC B7 3CD 035 454A - AliExpress
Alpine - SPC-600G7 Subwoofer System for VW Golf 7, Golf 6 and others
VW Passat III | sedan (2015-2021) | B8 | Focal Inside
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 :
VW Passat install by Auto Fusion-Anwar - Team-BHP
VW PASSAT CC NEW STEALTH SUB SPEAKER ENCLOSURE BOX SOUND BASS UPGRADE CAR AUDIO | eBay