
Today my brother requested help in removing the door cards from his 03' WRX, so he could measure up and see what room is available for new speakers. He was very happy to find he had separate tweeters in the front doors from factory. Not so happy when he saw the available space for main speakers at the bottom of the door i.e, almost no space at all. From the mounting flange to a screw that pokes out of the window there is an absolute maximum of 45mm depth, and very limited space in the door card itself to space the speaker out for more depth. However in the rear door the window doesn't come down far enough to interfere with the speaker, so you have about 4 inches of possible depth! and the hole in the door is about 4" diameter so you could fit a 4" cube in there pretty much

That is all
