Good job!
Question for the DE5 bros...does the audio tuning menu have a separate page for Subwoofer adjustment? If not, I'd suggest trying a $20 Kicker LOC before an L2CI/Pro. There is an obvious difference in how Honda was handling low-end frequencies in my 10th gen Civic (had discreet...
Is there a reason why you wouldn't install this mat on top of the trunk floorboard? I would think direct contact w/ the sheetmetal would offer the most sound deadening. That and you could tuck the flaps up under the side wall carpeting.