Me and my wife just bought another car and i want to replace the factory speakers in the front and rear doors. We have a 2008 Nissan Altima and the factory speakers in it are some of the best i have ever seen, definitely when it comes to bass. I want to find some speakers a little more powerful then those to put inside my 2004 Ford Explorer XLT and i don't want to install a big subwoofer or anything of that nature. So i guess my question is what type of speakers can i buy that would give me raw power without taking up room in my car. I also want to replace the deck to. The speaker size is 6" x "8 Any suggestions would be helpful.