Not inside the skull, in a helmet on the outside. It would be less than convenient otherwise-- there's an emergency bailout system that shuts down the connection if the Endlave is in danger of being destroyed, to keep the pilot from getting hurt from the backlash.

Think of it as working like a sort of remote control.

[... wait, she probably has no idea what that is.]

... or a radio signal that's strong enough to avoid interference.