amazinblazin10

i'm going to leave it as it's all in the build..

on my box what i did for the amps is i got some rubber bushings off of some old shocks and mounted them between the amp and the box as a "suspension" so to speak works great..

i use a 3/8 round over on all my builds and i personally like the look of it, i use 3/4 MDF all the time also. never heard of 1/4MDF though

yeah go for the 2 12's more cone area unless you had the space for a t-line for a single twelve, but beings it's going in a trunk that might get kinda tricky

yeah dude just do the big III upgrade and like donise said you'd need to get a distribution block but those are relatively inexpensive. as to your dual ported box, why buy? learn to build, you'd get so much more satisfaction out of building one, and you can build it specifically for that subwoofer, but hey if you aren't able to build one at the moment that's totally fine, as to you head unit problem.. can't help ya there sorry.

is it any louder than before?

i used the car stereo on my first box but i made a mistake by tuning it hella high.. were talking mid 40's

man if i were you don't buy a prefab you can make one so much cheaper. Im sixteen too and i just got into this audio world about 6 months ago and i've already built my 3rd box, you just gotta get in there and try and build it yourself and learn as you go. That's what i did, my first box was pretty shitty to be honest but i got so much more satisfaction out of building it myself than i would ever have gotten buying a box. I would say go for building your own, but hey your sub, your decision. But you can always come back to SMD to get help from other people to guide you along the way.