How do I unclogg a ac drain line that is leaking from under my glove box?

Look on the firewall (passenger side) just below the location of the bottom of the heater box You will find a small stubby hose connected to the firewall with nothing else on the other end .you are looking on the firewall on the passenger side Depending upon how many components are in the way you can either reach it from the top or bottom. Roll it in your fingers and usually it will drain. there are other options if no luck doing this.just google it for videos..