hope you have found that fuse- it sounds big enough to mabe be powering other circuits also?
i have a similar year japanese, and had removed a/c from it. in doing so, i removed a resistor pack that controlled blower speeds.
took me a while to figure that out.
yours probably has same style circuit- perhaps another thing to be looking for, as you trace things......

'89 kick w/some modifications.
some intentional.
suzi the psychic gets me fishing.