This is a modification for anyone that is similar to me, and never uses their rear wiper. I saw this mod done on an impreza hatch and decided to try it out on my car. I think it turned out well and looks clean. I did this on my '01 outback, but I'm sure it will work similarly on legacy wagons and foresters.
Here's the link if you're interested in purchasing it.
Password:JDM Rear Wiper Delete Kit V.2 | Password JDM
I went with the above kit because you bolt the plug together making it secure, so it can't just get ripped off your back window.
Remove the cover on the wiper arm to expose the nut holding it on.
Then remove the bolt, 10mm.
Large nut, I just used an adjustable wrench, it wasn't on that tight.
Remove the washer.
Then inside you have to remove the panel cover. It has 5 plastic pins, 3 on the driver side and 2 on the passenger side. Then you just have to work the trim off, there are about 6 plastic pins holding it on to the hatch. If you want more info on this feel free to ask.
Disconnect the license plate lights and the wiper motor plug. Remove the 3 bolts holding the wiper motor on the hatch.
Once you remove the 3 bolts, you can get to the 2 pins holding the wiring harness to the motor. You can easily remove them with needle nose pliers.
What it looks like removed and cleaned up.
Oh, here's the black rubber grommet that will be the last thing you take off.
Here's the package. I did have to modify the plug on the right side of the bag to fit it in the hole in the window. The hole on my window was about 28mm. The plug is about 30mm, I had to grind it down until it fit in the window, then I gave it a quick spray of black paint to seal the exposed metal.
Next I screwed the stud into the outer plug, use an allen wrench to tighten it. Then I put the gasket on the window and put the outer plug into the hole. You'll need to hold the hatch about half way down to do this part. Next I put the gasket on the inside plug and put the plug into the whole, then got the 10mm nut started. After that, grab the outside plug and use a wrench with at least a 6" extension to tighten the nut from inside. If you don't hold the outside it will spin.
Finally I unplugged the fuse for the rear wiper arm, 2nd one down from the top left I believe, inside fuse panel (it tells you on the fuse schematic on the change holder).
Thanks for reading, feel free to contact me with any questions.