Re: 18 in the trunk?
i can see it working, i was planning on doing an 18 in my trunk before i got a zcon 12 and my car's a tiny 03 corolla got 6.2 cubic feet with some adjustments worked out. it'll be a lot less then the optimal size but its still in the workable size where it wont sound terrible. Your trunk has a lot more clearance compared to mines.
Clip city b1tch, clip clip city b1tch. 10's, 12's, 15's, goin up in flames b1tch.
2009 Sienna 3.5L Subs : C2 threatcon 15s. Sub amp: hifonics brx 2400.1D x 2
Headunit: Pioneer 80PRS bought used from vertex audio Mids/Highs amp: PPI Phantom 900.4 - bought from dragnix
Front stage: 3 way active front stage with Massive Audio CKX tweets, alpine type R 6x9 midbass in doors + DB drive pro audio 6.5 in the kick.
320 amp Singer alt almost installed. 0 gauge Audio technix ofc all around, 2 group 31 agms in the back.