1996 Riviera BCM location
 

Where is the body control module on a 1996 Riviera please? I DO NOT mean the ECM/PCM (behind the glove box) I DO NOT mean the brake module (on the left front shock tower) and I do not mean the twilight sentinel module (under the dash to the left of the steering column). The reason I am specifying is because the answers I get when I do a search here and on other forums seemingly get all these conflated.

On many cars it is behind the back seat in the trunk for example.