1988 Crown Vic Wagon 5.0 I am looking for the AC port to recharge the AC? on 1990 Ford Crown Victoria

Blower works, compressor cycles on/off blowing nice warm air. Thank you

Asked by for the 1990 Ford Crown Victoria
1988 uses R12, which you cannot buy. It will have to be converted to R134, which means taking it to a shop for evacuation.