guys, since i changed my sony xplod headunit back on my car, those are 52x4....then i thought that the stock speakers can't handle that much power...then i changed the front speakers, i got the infiniti kappa 62.3i...sounds better...but still can't heard some bass music or loud music...and recently i saw a sub and amp package for sale about 140.....if i get this, will this improve??? the package includes one 800w sony xplod amp, and 2 10" kicker woofers...for installing them?? since u guys done that before.....did u guys remove ur seat??? how did u guys connect it into ur headunit??? really need help....thanks guys..i owned a 2k2 max~