What does the HVAC vacuum supply line look like under the hood or a 96 mustang and where is it located at?

What does the HVAC vacuum supply line look like under the hood or a 96 mustang and where is it located at?
Low side service port is near the passenger side strut tower/firewall, high side service port is next to the passenger side of the radiator. Both should have black plastic caps. Caution: refrigerant is dangerous (can cause severe frostbite),
(In the USA) It is against the law to release into to the air/ or service the a/c system unless your are licensed.
Each car only takes a certain amount oz/lbs. operating pressures( need a/c gauge set or a/c machine), the wrong amount can cause damage.