Renewing idle air valve rubber connectors

[rsmartin]

I'm replacing all the rubber engine air breather hoses. there is a little hose that connects the two rubber boots at the idle air valve assembly.

is it this part? i have the part but don't know what do with it

1986 Mercedes-Benz 560SEL Base Sedan - Intake System - Page 2 Air Intake Tube p/n 116 997 16 52

if so, how do i install... it appears it is closed on one end.

i'm confused. the original assemply has a tube connected between the two boots that was at sometime buggerd up because it's gunked up with some kind of schmutz to make it air tight.