All My Friends Have Off Switches

All My Friends Have Off Switches is a main story quest to the Fallout: New Vegas add-on, Old World Blues.

Quick walkthrough

 * Go to the Sink and install the Sink Central Intelligence Unit.
 * Find the missing modules for the rest of the Sink.

Detailed walkthrough
After receiving the Central Intelligence Unit from the doctors in the Think Tank from the prior quest, Welcome to the Big Empty, proceed to The Sink, activate the Central Circular Structure in the Sink and you'll install the Central Intelligence Unit.