Supposed to go on a trip on the weekend and just concerned that might be something else. Doesn't smell so don't think its gas. It is not the brake line. Must be for AC right? there is 4 of them and some in insulation here and there.

Most likely. Two are for the ac and they will sweat when the ac is on. The other two are the heater hoses and will be hot all the time with a warm engine. All four should enter the passenger compartment under the rear hvac unit and be routed as a group underneath. I assume these are hoses about one inch in diameter? The ac lines should be of two different diameters and will be more evident where they are metal lines.

Most likely. Two are for the ac and they will sweat when the ac is on. The other two are the heater hoses and will be hot all the time with a warm engine. All four should enter the passenger compartment under the rear hvac unit and be routed as a group underneath. I assume these are hoses about one inch in diameter? The ac lines should be of two different diameters and will be more evident where they are metal lines.
Yes they enter the rear end passenger compartment and there is four of them routed together. All four on my Van are metal lines. The AC like you said are different diameter i'd say about 1/4 and 1/2 inch. The two heater ones are the same size and they are the ones that have insulation on them to prevent loss of heat! it all makes sense now.

thanks