When I bought my 04 EB 4x4 expy it came with an aftermarket K&N air induction system on it and I'm not fond of oiling and dealing with the K&N filters at all. I bought an OEM intake system from a salvage yard but am having an issue due to a piece missing apparently. There are 2 hoses that attach to the intake neck next to the throttle body. One of them is the PCV valve hose from the valve cover, and I don't know what the other one is. Apparently there is supposed be hose adapter of some sort on the 2nd hose in order for it to connect to the air intake tube, but that is missing. Does anyone have a diagram of that so I can show what I'm looking for, or know what that adapter is called and maybe where I could find it? Thanks!