The trunk on most of the 1St Gens are kind of flat on top . If the rack you have has four posts that will hold it up off the lid you should be able to mount it on the 2ND gen trunk. Just keep in mind that a lot of the racks do not have the flat pieces that the rack sets on. If your rack does not have the metal strips under the rack then you can crack the lid if you put very much weight on it. Here is a couple pics of mine. I had to make the plates you see under the rack.
http://i253.photobucket.com/albums/hh64/slowrollwv/DSCF3025_zpsg6szpdb4.jpg
http://i253.photobucket.com/albums/hh64/slowrollwv/DSCF3026_zpsfrb0yt7f.jpg