Check this web-site http://www.carstereohelp.net/speakersizesVW.htm
The 1998 Nissan Maxima rear speakers measure five inches by seven inches. There will be to rear speakers, one speaker on each side of the passenger cabin.
6in in the doors and 6x9 in the rear deck i think they are 15a
6.5 componets up front and 4x10's in rear
Front: 6-1/2 Rear 6"- 9"
depends on witch ones but the rear are 7 /.5 and front is 4 /.50
The speakers i put in the dash of my 98 were 3.5 inch speakers!
The front speakers I know are 4x6's despite two door or four and I am pretty sure the rear are 6x9's
Following my information, front and rear speakers are the same. The size of the speakers are 6 x 8 (original mount). You can also use 5 x 7 speakers in second choice. They are very similar. For any other size, you have to custom the installation or use adapters.
all the door speakers are 6x8 on the 98 ford expedition.
for 98 gt, 185 60r14
I am not sure of the size of the tweeters in the front doors, but all four doors have a 6.5" speaker in them, and there are a pair of 4x10 speakers in the roof all the way at the rear. ( they look a little like patches in the headliner) Also note, the small box under the driver's seat is actually an amplifier for the speakers in the two rear doors.
5.25"