I replaced the evaporator core in my 1997 w140 s320 and i've been putting the dash back in i've found a plug and i can't find out what it goes to.

It's on the passenger side dash area, comes out from behind the windshield brace.
It's taped up with the airbag and glove box light.
Has 3 prongs, part number 014 545 00 28.
3 Cables, Yellow w/ blue stipes, brown, and grey w/ red stripes.

Anyone have any ideas?