6x9 is the speaker size.
Front and rear 6x9
6x9
the rear is 6x9 and the fronts should be 4x6
the door speakers are 6.5 and the rear are 6x9
All 4 speakers are 6x9's
6x9
6..5 in the doors and 6x9 in the back
front 6 1/2'' back 6x9 infiniti tweetwers 1''
The front speakers are 6x9" and the rear speakers are 5.25".
Front 6x9 Rear 5 1/4
If you have the 4 speaker base system, both the door and the rear speakers should be 6x9. The 6 speaker "premium" system should add 3.5in in the dash.