2009-2012 VW PASSAT CC Front DOOR Speaker / Woofer 3C8035454 OEM | eBay
Alpine's VW Passat CC Audio Car | Fast Car
VW PASSAT CC NEW STEALTH SUB SPEAKER ENCLOSURE BOX SOUND BASS UPGRADE CAR AUDIO | eBay
For Passat B7 2012---2016 CC Dynaudio front door woofer 3C0 035 454 B
JL Audio Stealthbox® Custom-fit fiberglass enclosure with 10" W3v3 subwoofer — fits 2009-up Volkswagen CC at Crutchfield
Amazon.com: Add A Subwoofer Bass Amplifier Adapter Interface w/Amp Remote Turn On Wire to Factory Car Stereo Radio for some 2015+ VW Volkswagen Vehicles - compatible vehicles listed below : Electronics
Focal Is VW 165 Speaker 16,5 CM Combo Compatible With VW Passat Cc 2008 -> | eBay
Installing a Subwoofer into a Passat Estate! - YouTube