I have done a search for my question. (Didn't really find an answer.) I see that there are a bunch of knowledgable types the check-in, here. I have a 1994 GT. I'm wondering, what (approx) is the cavity volume of the doors? My plan is to put 7"-8" woofers in the doors and on the rear deck. I would like to have an idea of the volume, so that I can (possibly) use that to help narrow my selection of drivers.