electronics

No offense fellas but after reading just about every electrical related blog here....you guys are scaring the shit outta me... PLEASE I BEG YOU...YOUR INSURANCE COMPANY BEGS YOU...YOUR LOCAL FIRE DEPT BEGS YOU....YOUR DOG BEGS YOU YOUR MOM BEGS YOU YOUR GIRLFRIEND BEGS YOU....AND MOST OF ALL...

I have a 2004 Jeep Wrangler Unlimited that I bought a couple of months ago. I dont know anything about the stereo or speakers in the car, but I do know that the deck is a kenwood. I think I blew the sub, and Im looking to replace or fix it. What would be a good sub to replace it with, how do you...