What makes you think that you will reproduce what you're hearing on a sound board or someone elses car in your car? Hearing them before hand will only give you and impression, that's it. I've used A LOT of different speakers in my car and they don't make THAT much difference...and 95% of them I'd never heard before. Refer to my earlier comment about install and tuning as that's what will make or break your system.
Why put egg crate foam behind a speaker? You got chickens laying eggs in there? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
Why deaden a rear door? Can you hear it vibrate?
Take advice from people on car audio forms very wisely. You'll learn through trial and error, not so much what other people's fantasy of what *should* be done or what sounds "good." That includes any of the BS I've just told you. //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif