Every automotive door speaker is either 4", 5 1/4", 6 1/2", more than likely yours are 6 1/2". Watch out for brands such as rockford fosgate and MB Quart (not that they are bad) because many of their component speakers are actually 6 3/4", which WILL NOT FIT without major modification. I have a set of MB Quart's in the doors of my integ and they took me over 4 hours to install because i had to make custom wooden brackets to house them in the doors. Also, make sure the speakers you buy are not too deep, beacuse your windows will not go down!
