Which is it for a 2002 xterra? A lot of different sources say a lot of different things - does anyone know for sure what size the speakers are in the front doors? Also, anyone have any experience in replacing the tweeters in the pillars? How'd it go? Thanks!

According to Crutchfield, surely you've heard of them, the 6 3/4" speakers are in front, and 6x9" are in the rear. Here's a link: http://www.crutchfield.com/cgi-bin/S-rnS71Cc9Q8k/AutoInfo/Speakers.asp?id=13913

6 1'2", 6 3/4", and the rare oversized 6 1/2" all fit in the front doors. I think that some older style Infinity Kappas (not as old as the green cones, the first generation silver cone 3 way models)came as 6 1/2" but with a collar to fit 6 3/4" openings. The tweeters are not that complicated. If you do replace them you can bypass the fatory cap if you have seperates and a crossover or keep it if you are just replacing the tweet and running it off of the factory deck. I kept the cap and put in Infinity Kappa tweeters and Infinity Kappa 6 3/4 two ways in the doors.

by the way, i did not notice that much of a difference in the tweeters, but the door speakers made a world of difference.

hey bodensj235...i just bought the new Infinity Kappa 6.5 and was just making sure that they will fit for a 2000 X SE.

are you going to be running them off of the factory deck or aftermarket? they are a vast improvement over the stock speakers. good luck with the install, it is pretty straightforward.

I used oversized 6 1/2. I chose not to replace the tweeters as they seemed to be more trouble than they were worth for little results. My new 6 1/2 are 120W, a great improvement over the 20W or 40W factory speakers.

Eric...I guess I'll leave my tweeters alone too, but I'm wondering are you pushing your new speakers with an amp, a new head unit, or just the stock head unit?

I would reccomend always amping your speakers, even if you have a new headunit or whatever it may be. It'll sound 10x better amped.

oh yeah, big amp, me like loud.