some people ,like me have a "T" installed half way up the tube to help stop the sucking of the oil into the airbox. My T goes up along the left side. Since the airbox really is sensitive to extra air (leaks) I put a small bolt in the end to keep the air leak from being big.
if your hose is not connected to the bottom of the air box, make sure it is blocked off.
Also, in order to work on those hoses, go to harbor freight and get the set of long needle nose plyers. they are worth their weight in gold when working on the Venture.