Where is the rear window defogger relay located on a 1990 Riviera you've looked in the relay centre under the hood and in the centre console relay boxes but can't find where the rear defog relay is?

FRONT SEATING AREA, PASSENGER SIDE, UNDER DASH, ABOVE KICK PANEL, MOUNTED IN RELAY BLOCK
FRONT SEATING AREA, PASSENGER SIDE, UNDER DASH, ABOVE KICK PANEL, MOUNTED IN RELAY BLOCK