Auxiliary air valve tube

My 1.8 GTi with DX engine has a rubber pipe from the top pipe connection on the auxiliary air valve dangling with a bolt stuffed into the end. The pipe passes through a T piece and then dangles in the breeze! The dangling end has a preformed 90deg bend in it and it's within 250mm of the air cleaner housing. Any suggestions as to what it should connect to most welcome…..

Can you post up a picture as that may help with spotting what's missing etc…