| Re: 1996 Deville Dash lights go blank for no reason
The rear fuse box and relays are often hidden under the trunk liner, and attached to the back side of the rear seat 'wall' (usually on the driver's side).
You detach the trunk liner by removing ~4 fasteners which push upward against the body at the forward "top" of the trunk. The fasteners are on threaded studs but can be simply pulled off for removal.
Access to the fuse box is most easily accomplished by a ten-year old child! (Just kidding... But it's also true.) | 
