I prefer the sound from round drivers over oval ones. With seperates, you actually have drivers dedicated to being mid-range speakers. With the coax speakers, the 6x8 or 5x7 oval driver is producing your bass and midrange. If you are going to be installing subs in your X, you won't need to double up on the low-end producing drivers. Think of it like home speakers. Do you like the sound of 2-way bookshelf speakers or the sub/satellite setups better? That is what I prefer. Just take the time to search around for what you consider to be the best sounding speaker setup within your budget. Plus, if you buy a set of speakers from Best Buy, Circuit City, or some place similar, you have a 30 day return/exchange policy with which to work. Those places will not refund the cost of installation, but they will swap out a set of speakers for another set if you don't like a particular set. Keep in mind that if you pay for installation of a set of 5x7's or 6x8's and want to upgrade to a set of seperates, there will be an additional charge. I used to install for Best Buy a while back and the difference is about $30 per set. A setup that I typically installed in X's was a set of 5x7's in the front and back running off the radio's power (barf!) and a single 8" or 10" mounted in the rear pocket. This setup was made better by adding a high power head unit and bypassing the factory amp (on premium sound systems) to power the newly installed speakers in the front and back while the sub got juice from the 2 channel amp that I would bridge on a 4ohm sub. I can explain how to hook up a 4 channel amp without having to run new speaker wire to the doors and rear panels if you would like. That is what I did in mine and it saved time and money...
