2015 - 2023 VW Passat Amp and Sub Install - YouTube
Passat B6 Audio System HX165SQ Evo HX10SQ X80.4D - YouTube
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 :
Add A Amplifier Subwoofer MOB Plug Wiring Harness For for VW Passat B6 B7 CC | eBay