94 cavalier heater core lines

Hi,

I've been trying to find out where the heater core lines run through the firewall for a 94 cavalier.

I got a 90 degree nipple through the firewall leaking coolant and I am not sure if a hose should be connected to it or not.

Any diagrams would be great. Thanks

ps - plan on picking up the manual after work, hopefully the picture is in there.

Thanks in advance  

nm, i think i found my answer.