Originally Posted by zwalker
Does anybody know how big you can go on the rear speakers on a 1991 MR2? The regular size is 3 1/2 but the front door speakers were 4 inches but it took 6 1/2.
My advice: Don't put rear speakers in. The MR2 doesn't need rear fill and putting something back there will mess up the acoustics. A good set of 6.5" components in the front will give you all you need. I also recommend relocating the tweeters to the kick panel for better imaging. A single 8-10" sub will satisfy most people for bass.
If you really do want to put something back there, you're just limited by how much you want to cut.
1989 Corolla SR5, 4A-F, 5spd, ~210k miles, 18.007s@83mph
WTB: 3sge camshafts ... PM me!