WARNING: This page is about a different car, the 1997 Cadillac Seville, 1997 Cadillac Eldorado, and 1997 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
Install BCM and reconnect harness connectors. Install rear seat back and cushion. Install 10-amp COMFORT fuse in trunk compartment fuse block. Reconnect negative battery cable.