Who wants to give it a try, follow this:
You have to take down the door, which is simple - 2 jackstands under the
door in the open position (tape generously the upper face of the stands
to avoid scratching the door and then push the stands up as far as you
can, even forcing the door a little up -it will help to remove the
hinges). Unplug the door electric connector by removing the small
lockscrew and then twist the plug -which will come out (I didn't
disconect the battery, the contact was off anyway)
Remove the big torx bolt on the strap and the 2 bolts that lock the
hinges- then slowly raise the door (window down)  and slide the hinges
up to clear their brackets. When removed, put the door with the inner
face down in a clean place.
Now find the big hole just in front of the strap on the pillar, covered
with a big rubber plug. Remove it. Drill 1 (or 2) 6 mm holes close
around the strap- where the separation of the inner plate is most
visible - depending on the severity of the separation you will find if 1
or 2 holes will fit your case. You have to insert  in each hole a good 6
mm bolt and nut, the nut in interior. Be carefull to drill close enough
to the strap and catch the 2 plates (they cause the squeak/growl), not
just the pillar sheet metal.  The big hole you removed the rubber plug
from  allows you to access the interior of the pillar with your fingers
and fit  a nut on the back of each hole, while from the outside fitting
the bolt in the hole and catching the nut. It takes a while to fit them
-I taped with scotch tape the nut on my middle finger to prevent it from
dropping indside the pillar -crucial idea after I lost 2 nuts inside !
When you catch the nut with the bolt, you're set. Tighten well to
strongly catch both plates, follow then with the second hole -one could
be enough in many cases. I chose to drill 6 mm holes and fit 10M bolts
and nuts. I sprayed the fix with paint to prevent my bolts from rusting.

Reinstall the door, no adjustments necessary because you just unlocked
the hinges and now you'll put the bolts back for each hinge, as it was
before. The last comes the bolt for the strap (don't forget the rubber
cover).
All operations on the door must be done with it opened as far as it will
go.
The fix is as good as a weld and costs 2 bucks, -excluding your work,
which is, I recognize -pretty hard when you have to fit the nuts inside
the pillar, blindly. But hey, what a satisfaction when you succeed!

See John Cook's graphic description of this fix, with a blow-by-blow commentary of what you need to know to fix the problem...
go there