Installing Subwoofers in my 2009 Jaguar XJ8 (x350/x358). Part 2 of a stereo speaker upgrade

Part I can be found here:    • Installing Door Speakers in my 2009 Jaguar...   Items bought and used in this video. You'll want a 9/32 socket, phillips head screwdriver, Dremel to cut and sand, scroll saw, and the following; Subwoofers: Ground Zero Audio Iridium GZIW 165 6.5" High Quality Subwoofer (100 RMS) × 2 Subwoofer adapters for 6.5" speakers: https://www.amazon.com/dp/B0GQCKF4ZV?... Car speaker sealing tape: https://www.amazon.com/dp/B0C2KHHDXV?... Car speaker sound dampening: https://amazon.com/dp/B0FJ7WWLFP?ref=...