New to the forum, I have a '90 Subaru Liberty GX wagon.
I recently had to replace my flasher unit and had a lot of trouble finding where it was located, so I took some photos to upload here. Hope it helps someone out! It's really easy to do yourself and you save shelling out for a mechanic.
The unit on my model is located up under the dash behind the glovebox, pretty much next to the tape deck. You'll see three inputs, the flasher unit is located closest to you.
Just pop the cabling out of the input that's there and plug it into the new one you get, It'll just dangle there but it's behind the glovebox so it's all g.