Did you try the keyword &#%*$(%(% ?

Pull off the glovebox door, glovebox. Undo the nuts on the firewall side to drop the inner box (a few are a bit hard to get at. If I recall I used one of those ratchet style box end wrenches on the ones near the inner fender.

Pull aside the box to get at the core. (I don't recall having to undo the cables) insert the new core. The core pipes that go thru the wall take a little cussing and finesse to get back thru (or a cute flexible dwarf) but they do go at the right angle. Be carefull or you could mess up the solder connection. Bolt it back in and hook er up....

Took me about an hour....