NEED HELP 9-7X Aero Wire

[AeroBlazer]

Does anyone know what the wire on my 2008 saab 9-7x aero that I put the red circle around is and goes too? ( I know the boot was bad in that picture but was repaired)

 

[TollKeeper]

That does not appear to be a wire, but a tube. Could be a vent for the front diff?

 

[AeroBlazer]

That does not appear to be a wire, but a tube. Could be a vent for the front diff?

Ok, so that should be normal

 

[Mooseman]

If it is a vent tube, it should be tied up higher so it doesn't ingest water or dirt. There should also be a vent cap.