custom install

[TurboTuli]

Whats the best way to get some 6.5s or at least 5.25s in the stock speaker locations of an s13? Do I have to do all the custom fiberglassing or is there an easier way. I'm told its hard to get quality 4x6 coaxials and they will never measure up to components. I could go with a 4" with a tweeter that mounts as a 4x6, but you can get so much more sound from even a 5.25. If anyone can at least point me in the right direction that'd be great, thanks!