Noise when A/C on

[AR97Pathfinder]

Hello everyone 

I was wondering if you ever encountered a slight rattle noise when accelerating and the a/c is on.

On my 97 Pathfinder I get the noise a few minutes after a/c is on and it goes away a few minutes after a/c is off. I tried raising rpms and listening from under hood but I do not hear any noise. Only when inside vehicle. No noise whatsoever from outside. Dont believe it is denotation either. It is a light rattle noise.

the compressor and accumulator dryer is new and a/c vacuum and recharged by weight. I had this noise even before replacement and I figured it might have been compressor since it was already bad. But replaced it and still getting noise.