I just did my dash speakers tonight, for the passenger side i removed the glove box and grab handle assembly(there are 4 nuts that hold the grab handle in the steel of the dash which are accessable after you take the glove box out) then the whole panel comes off and the speaker is right there. As for the drivers side, its a bit more complicated. After taking the dash panel off from around the steering column, I removed the tach and unplugged it from the harness. then i removed the 3 torx head bolts that hold the steel dash to the A pillar. This allows you to get at the top left nut on the speaker. You can reach in thru the hole where the tach was to get at the 2 inside bolts. I replaced these stock speakers with Bose 4x6 speakers, 200 watts. Purhcased from wal-mart for $28. These speakers bolt right in and will also accept the stock wiring harness plugs if you are going that route. Hope this helps. As far as the 4" in the doors, take your inner panel off and watch the window when you roll it down, in order to clear that bottom channel for the window when its all the way down, the speaker has to be mounted in the lowest part of the door.(unless you have half doors without glass windows) and i felt that the speaker would be receiving too much abuse in that low mounting. Just my thoughts on the subject. Happy wheelin!