I posted a seperate thread asking about spoiler policy for the forum. As the question was answered, I'm posting my question proper here just so it's more visible. Hopefully this isn't a problem, my intention isn't to spam the forums or double post or anything.

========
SPOILER
========

In the end game, I'm at the part where the three characters need to work together to unlock the door at the top of the tower. I used the grenade to blow the power, letting me knock out the guy with the gun. Then I gave control of the tower to the people outside, overriding the AI. I figured out I need Latha to go in and hold the door open in the Trance, while getting another character to shut off the power, but I think there's a third thing I need to do in the time window before power resets, and I can't for the life of me figure it out.

Put simply, what sequence of actions do I need to do to override the locked door at the top of the tower? I've tried every combination I can think of, and I'm probably missing something obvious, but I don't think I'm going to figure it out on my own.

EDIT: Oh, and I put up the antenna of course. I think that's a prerequisite to getting the people to override the AI, but that's already done.

Do you still need help on this?

Hint: You need 2x the power shutdown in order for it to work.

Let it be known that I never even noticed a second power conduit in the elevator shaft. Suddenly the mystery of the superfluous wrench has been solved.

Just finished the game. Thank you!