I have been detailing a used 93 FD that I bought a year ago. There is a missing hose on the air cleaner box. I cannot figure out where it should go. The manual shows only the top end of the hose and not where it should end up. The port is on the inboard side of the air box. There is only one port on this side and it is about 1 inch in diameter. Any clue where the hose is supposed to end up???

Thanks