Changing audio system

I recently bought a 1996 j30 and wanted to customize the stereo. I was wondering if anyone knew the speaker size for the door and rear before i have to take the door panels off. I would rather only do this once.

go to www.crutchfield.com and go to what fits my car , it will tell you

I tried that, but unfortunately they don't have that model listed.

You have to trick the Crutchfield website. Tell it you have a Maxima w/Bose and it will pull up plenty of choices.

That's what I did and it worked like a charm. However, this trick only works for replacing the head unit. DO NOT buy any of the recommended speakers since the speaker sizes are different between the Maxima and the J30.