Sm Vac Hose Under Accordian Hose

[Chromemoly]

Hello all.....
A few questions:

1) Where does the small vac hose under the accordian hose connect? I changed the acordian hose, but I can't see where this small vac hose connects. I looks like it goes somewhere behind the power steering reservoir? What function does it serve?

2) The trim that surrounds the window on the rear hatch is coated with a black coating or layer, or what ever you want to call it. Mine has been subjected to the sun and is peeling and fading. Any ideas to repair this?