I've been reading up on this forum for awhile now. First off I'll say right off the bat that crutchfield isn't the most reliable source for what fits so please don't suggest it for fitting like others have on other forums. I ordered from them before and guess what not everything fit.My father installed Alpines that were ordered awhile back they provided some parts but not enough so had to make modifications to disco 1996. Spacer brackets,foam, etc..they stuck out quite a bit and wish they had been flush. Now that that's out of the way.They're still a great site don't get me wrong as their customer service is amazing.back to the whole subject at hand for those who have replaced their original speakers for disco 2 what size works best for the front and back ones along with tweeters. Also wondering is Coax or components would work better. I've been other forums and heard from some that 5¼" work best or something along those lines because the depth in the back isn't quite enough for a lot of the 6.5" speakers. As far as the mids in upper rear and back I have no clue some sites say 3.5" and others 4" can someone please shed some light on this topic and whatended up working best for them. It would be much appreciated.I'm. Looking for speakers that will provide clarity, warmth, the most accurate sound possible with no distortion not too much bass but not too little. The perfect balance where anyone in it will you get lost in the music.pure harmony to the ears that will put anyone in a state of bliss.