I have a 97 LS coupe and I don't remember seeing any such box when I stripped my interior to install sound deadening mat. :thinking: It's been a while, though... so I may be senile. h:

1) Trace the wires. Assuming they run back to the ECU, note down the pin numbers.

2) If you can, take some macro photographs with something better than a cell phone camera. Even with the connector diagram, those pics are too blurry to be of much use IMO.