Yaris Sedan Deadening and Sound system upgrade

[Alien Mantis]

SQ: I seen your 15" in the trunk. I was going back over this whole thread earlier today. And your WALL of DD amps. That 15 was a Hertz.
Killer looking sub. I'll bet it pounded hard.
Any recent pics of your latest setup?
I also seen all the work D was doing to try and get his sub in the front of the car. Nice little enclosure he built for it.
I don't like subs up front, it costs you leg room. I'll just deal with the bass coming from the rear. Doesn't bother me at all.

Initial report from my test-drive:
Definitely quieter. It mellowed out the noise. Still a little road noise on the rougher roads, but nothing like it used to be, and almost silent on smooth roads. Love it.
Now here comes the strange part. This surprised me.
The system sounds crisper and punchier!
The whole system sounds "tighter". Not sure how to explain it.
The highs are extra crisp. The bass is tight and punchy. Very clean.
I'm sure all the "noise" was clouding the music, and now more of the music is coming through. I just didn't expect it to be that noticeable.
1st impression: I like it. It's a definite improvement. I'm glad it's DONE.

We'll see if my viewpoint changes as time goes on, but right now I am pleased with it.

I felt guilty about hijacking your thread, but then I realized this thread was about "sound deadening" and "upgrading". So.... I stayed on-topic.