The "box" is the pnp. In 07 it's internal and in the 20 pin plug. You can NOT put that 07 into the 97 or 98 without some wiring changes and even then..it has a lot of differences that don't make it easy.
Here's a link to the pnp alignment and wiring in case you pop one off. Keep in mind this is pre 2003 info. 2003 and later is different.
http://www.grandprixforums.net/threa...light=external
Can you post pics of the transmission connectors. 98 GT should be a 4T65E, like the 97 GTP (except HD (97) vs non (98))
