2004 Subaru Forester with new stern. It is a pretty tight fit. I have a couple suggestions;
1) remove the key hanger on the back of the head
2) remove the hatch opening roof trim piece. It just pops off and gives a bit more wiggle room. I figured this out after I took the picture.
3) I am pretty sure it would have been easier to load the game rear first (opposite from my picture). At least this proves it fits the dumb backwards way as well.
4) The biggest hurdle is squeezing past the middle rear seatbelt. You just have to fidget with the angle of approach and wiggle as needed. Once you get off the bottom of the hatch hump, it will have a little more clearance to move around.