1991 Mercedes-Benz 420SEL Q&A

1991 Mercedes-Benz 420SEL Question: low pressure port location?

Hi, Looking for the low pressure port to recharge the AC, but don't know where it is located under the hood. Would be really helpful if someone can provide a picture to pinpoint the location. Bty, already converted to R134a system. Thanks in advance. -
Answer 1
Looking for the location of the low pressure port on 1993 Grand Prix -
Answer 2
ON 1990 IT IS ON THE BIG HOSE ON THE DRIVER'S SIDE ABOUT HALF WAY BACK FROM THE RADIATOR. -
Answer 3
A/C IS LOCATE NEAR BY FUSES BOX FRONT DRIVER SIDE IT IS BIG HOSE YOU NOT GONNA MISSES. -