I can't find the post now. But, someone with a 2008 or 2009 used a long, thin blade screwdriver from the fan side and lifted the trunk lid enough to slide the blade in to push the latch over. I don't remember if that long black plastic piece that runs the width of the trunk presented a problem.
I actually use an electric plunger (circuit energized continuously) to push the latch over to get into my 2008 trunk. Not that that does you any good.
I just tried the screwdriver method and there is no way that I could get it to work, especially with that long plastic piece in the way. If you really try to force the trunk lid up too much, it'll probably break.
If the cable didn't break at the latch end, try this:
http://www.spyderlovers.com/forums/...s-in-storage-trunk&highlight=long+screwdriver