Does anybody know the size of front speakers, 5.25 or 6.5?

 

Try the size chart on http://www.crutchfield.com also you should pull the grille off and measure. I'm pretty sure it'd be 6.5" though.

 

Just be careful as some 6.5" speaker's mounting depth (don't want you window to crush it on the way down) will be too big and require an MDF spacer to be made. Otherwise mostly ALL 5.25" will fit with no problems

 

THey are 6 1/2's, you have to take the door panel off to get to them. And once you get the speakers you might have to cut out the baffle behind the speaker. Don't worry too much about the depth, i have Boston Pro's in mine and they fit fine, but make sure just in case.