Where’s the a/c drain line on our cars? air vents stink

[88crx]

That funky smell is back in my a/c again and I want to check to make sure the condenser is draining fine. And yes my cabin filter has been replaced.

Or has anyone had sucess with frigi-fresh or those spray products you shoot through the center vents?

[Hasbro]

This doesn't answer your questions directly but one practice that is essential for keeping the ac smelling fresh is to always turn the ac off and leave the fan on for a couple of minutes prior to turning off the car. Eliminates all the moisture in the system. My cars have never acquired any negative smells.