Road Runner Nest

WHERE EXACTLY DOES THE PLASTIC T FITTING GO IN THE VACUUM HOSE SET UP FOR THE AIR GRABBER IN MY 71 GTX AND WHAT HOSES ARE CONNECTED TO IT?

There is a “tee” fitting referenced in the original diagram, refers to vehicles with a vacuum actuated trunk release. I would assume vacuum source for the trunk release is tapped from the A/G vacuum line. The A/G cars I’ve owned never had the trunk release, thus never found a “tee” fitting in the A/G system.