[Mystake]

this has been on my mind for ages.

And it will stay there... but I assume it can't be that hard - if you can get an automated piston then the rest is easy.

Hit trunk button, trunk unlatches, wait 2 seconds, piston activates and lifts the hatch.

When you're done, hit the trunk button again, everything does the same thing again but piston activates going the other way. As long as it closes far enough, it should activate latch no?