air conditioning

I need help in locating the air conditioning ports on my ac. Its kind of cramped under the hood and its hard to see, but I am wanting to service my a/c But I can't find both ports, the high and low. Is there any photos anywhere that shows them? Its a v6-3.8L 1992 Lincold continental executive. Can send photos if you have them to me at [email protected].
Thanks, Kelly