results update:
Followed this great how to video (is this guy on MUD?), figuring if he could do it with one hand I could do it with two. The only thing I disagree with in the video is that if you are going to go through the trouble of replacing the sub, why would you buy a $12 Wal Mart sub as your replacement?
Debated heavily on which speaker to order, so I ordered 2:
1. the one Crutchfield said would fit (JL 6 3/4", $180):
JL Audio C5-650cw-RP
2. the one Crutchfield said wouldn't fit, but the one I wanted to fit (Kicker 6 3/4", $75):
Kicker CompRT 43CWRT672
Unpacked the boxes and found the JL was just as weak as the OEM JBL that I was tearing out. Was just a crappy speaker, especially for the price. Found the Kicker to be a really nice alternative and better built.
Anyway - followed the youtube video, removed the back panel, took off the trim ring on the stock sub, removed the blown speaker, clipped the wires.
none of the 8 holes in the Kicker housing lined up with the the 4 sub box holes, but the box is plastic so I just threw 8 screws into the plastic and called it a day. The stock opening and depth was perfect to fit the Kicker into.
Only thing to watch is that the black and red wires are the negatives, the yellow and green/blue are positive.
TREMENDOUS upgrade in sound, and I'm very happy with the outcome. I'm not going to win any awards for my system, and the sub isn't slowly unscrewing my license plates, but I actually have bass now which really creates a much fuller sound experience, and makes the other 6 speakers sound really good.
I could probably make this even better by switching out the amp, which I'll do someday. But for the time being it was $75 and a couple hours of slow moving work, and one of the better upgrade results I've experienced so far.
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