I need to install freon on my 2007 Pacifica... but i cannot identify a Low for the installation... am i blind.. also i purchased something from Autozone which had the gauge and connector, and i attempted to connected to to a Gauge next to the engine, and it did not fit...

i'm travelling from nyc to florida and it's 90 degrees downhere... in nc it's in the low 50's so i didn;t need to use my ac until i got to FL...

please advise, can someone post a digram or place to plug in this valve so that i can recharge my AC...

 

the other port is on another line fallow the metal lines and U will see a blue or black cap on it