WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
Install the relay (2) in the same position as removed.
Install the electrical center cover.
Fig 1: Installing Relay (With In Electrical Center) Using Puller Plier