You need to get out of the room unseen.
Pick up the RUBBLE from the floor and use it on the window on the left. This will smash it so you can pick up a piece of GLASS. The glass will function like a screwdriver when you use it on the socket next to the window. Some wires are now exposed.
Use the rubble again and this time use it on the panel on the space ship. The smash will create a dent. Use the rubble again on the dent to pry it open and expose some more wires. Pick up the WIRE and use the wire on the socket on the left. Pick up the WIRE FROM THE SOCKET and use it on the electric thingy ma’ bob next to the door. That’ll stay unnoticed. ‘
Game source: A copy of the game was found here on the internet.