6.5 in doors and probably rear doors not rear deck. They have the grill but no hole for the speaker on the rear deck. I just did a system for a 03 Maxima, not sure which model but it was 6.5 all the way around. The doors needed a spacer for them the rear doors just barely got the screws right. Did JL VR components up front and I think some Kenwood coax's for some filler in the rear doors.