A/C condensation tube

I have a 99 Suburban 5.7. The front passenger floorboard is wet, If I am looking in the right place I believe the condensation tube is missing. There are two hoses (heater hoses I believe, rubber hoses that connect to metal tubes that run from the engine compartment through the firewall to the inside of the passenger side of the cab) Just to the right of these hoses is a hole with no tube. I stuck a long wire into the hole about 6 inches and felt no end to the hole. Is this where the condensation tube should be? How do you fix this? Thanks

The AC condensate runs from the bottom of the evaporator to the outside of the car, underneath the front passenger dashboard/firewall area. it's rubber tubing, smaller diameter than heater hose (maybe 1/4 inch), more like a vacuum tubing, and should just drain to the ground. If yours is missing, or is just clogged, water will back up and cause flooding like you're getting.

if there is no rubber tube on it- it needs one-- otherwise on long trips the water will back up and leak into the passenger compartment- seen it many times on B-bodies where they forgot to put them on from the asmebly plant.