miata ac connections

I have a 94 miata whose AC condenser developed a non-repairable leak. (I was under the car wrenching when I heard the condenser pop and leak its guts out. Nice loud sound, and cold too, at least while there was pressure in the system.) I have a new condenser, and drier. I also have gauges and a vacuum pump. In the dark, ancient past, when R12 was plentiful and not evil, I've done AC work. (Installed a factory AC kit on a truck, home AC)

So far I can identify only one fitting (blue) on the AC system. Is there a second fitting (red) that I've missed? The FSM is totally unhelpful. In the AC section, it doesn't even identify the gauge connections or ports in the schematic view. The simple drawing shows what probably is a r134a quick-connection, but it is not identified.

TIA

blue is your lowside fitting... smal diameter... will need to find highside fitting to properly charge system(but can vaccuum and charge it all from low side and make it work

In reply to KATYB: Thanks. I found the other side fitting, duh! Just wasn't where I was expecting it! Amazing one can be blind to stuff only a foot or so away.

Is there an easy way to disconnect aluminum fittings? (Besides a sawsall) They just don't want to move. They seem to be corroded/welded to one another. I've got a 24mm wrench on one side and a 22mm on the other. Don't want to round or break the fittings. Penetrating oil? Some other trick?

your turning them the correct way? otherwise nope... can try penetrating oil... or heat. otherwise muscle