Both the turn signal and hazard warning flashers are mounted on the fuse panel on the Aerostar. The turn signal flasher is mounted to the front of the fuse panel, and the hazard warning flasher is mounted on the rear of the fuse panel.
To gain access to the flasher relays, remove the cover from the lower edge of the instrument panel. With the cover removed and the fuse panel exposed, the flasher relays are the round cylinders within the panel. To remove a relay, simple pull the relay out. When installing a relay, make sure the terminals on the relay line up with the terminals in the fuse panel.