What speakers will fit my future s13?

[Natty]

I am gonna pick up a 1992 240sx Fastback LE on Wednesday. I want to go ahead and start looking at a new sound setup for it. What size speakers are up front? Are there any in the back?
I probably gonna go with MB Quart 3 ways all around, with bass blockers. I am still deciding on a headunit and bass setup.
Natty

[confucious240sx]

Stock speaker size is 4x6 all around, but I have heard of people putting 6x9's in the rear.

[Meeks32]

The only 3way speakers MB quart makes are 6x9's. They have 3way components but that would take custom fabrication. Your best bet would be to cut the 4x6 hole(if you even have to) & put in 6.5in components.

[KenFuji]

i have 6x9 in the front 6" mids in the rear
1" neo's up front and a singlr 10" sub images/icons/smile.gif does that help? thinking i should up grade to a pair of 10" or a single 12"