what it can be sounds like water sloshing behind dash

didnt see anything outside the car..did notice a little spitting out center vent

If you don't have a good drip/puddle of water under the car with the A/C running,then the water/condensation is draining inside of your cars heater/air box and is plugged up with debris. water should drip at all times with the A/C running. everyone thinks I have a bad radiator leak under my car when I'm sitting in a parking lot with the A/C running,until they see it's clear water!

Is there a way to check, and potentially clear and fix the A/C leak issue?

well,where is it leaking from/to? is water leaking inside the car in the floorboard or underneath the car on the pavement/ground while the A/C is running? are you the same person that posted this question on July 02, 2018,year and a half ago?