In addition to David's post, you can also see my PDF:

http://www.oldvolkshome.com/late_van_cluster_install.pdf

I made it up a few years ago after doing several cluster upgrades on
82-84 Vanagons.
-- 
Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
72 411 Station Wagon "Pug"
75 914 1.8 "Nancy"
Full Timing Since March 1999
oldvolkshome@gmail.com
http://www.oldvolkshome.com
***********************************
On Thu, Jun 2, 2011 at 2:16 PM, David Beierl <dbeierl@attglobal.net> wrote:
> Here's a checklist that should be helpful.
>
> The connector folds open (from the rear? �senior moment here). �Pin
> numbers are on the end of the connector; but pin one is empty on the
> older panel.
>
> To adapt the 84/83.5 WBX connector to 85+ panel:
>
> Pin three (panel lights, gray/blue) moves to pin one (was empty).
>
> Pins five (panel ground, brown) and two (ground for the hazard
> switch, brown) combine and go to pin three.
>
> Pin four (high beam, blue/white) moves to pin two.
>
> Pin six (coolant temp/level, twin yellow/red) stays put.
>
> Pin seven (clock, red) moves to pin five.
>
> Pin eight (fuel, yellow/black) moves to pin seven.
>
> Pin nine (panel power, black) moves to pin eight.
>
> Tach wire goes to pin nine - use the extra terminal you got from
> combining the ground wires. �Recommend green wire.
>
> Pin eleven (OXS, blue/green) moves to fourteen. �<-- this essentially
> useless indicator is where you get an extra wire/terminal to ground
> pin twelve if necessary. �But if you're keeping the OXS, for now
> leave it hanging in the air while...
>
> Pin thirteen (ALT, blue) moves to eleven.
>
> Pin ten (OIL, blue/black) moves to thirteen.
>
> Pin fourteen (turn signal, blue/red) moves to ten.
>
> On a panel with a circuit board installed in the speedometer, ground
> pin twelve to simulate the second oil pressure sender of the 2.1l engines.
>
> And if you still have the OXS wire hanging, finish moving it to
> position fourteen.
>
> Obviously you have to do your setup ahead of time, cutting and
> combining wires as needed. �But once that's done, the preceding order
> of movement should always leave you with a place to put the pin
> you're moving, and toward the end one extra wire hanging out.
>
> Final order of colors should be:
>
> 1 - gray/blue
> 2 - blue/white
> 3 - brown
> 4 - open
> 5 - red
> 6 - yellow/red
> 7 - yellow/black
> 8 - black
> 9 - [green] with a brown end attached
> 10 - blue/red
> 11 - blue
> 12 - [blue/green end going to ground, or open if no L-board connector
> into the speedo housing]
> 13 - blue/black
> 14 - [open, or blue/green]
>
> Yours,
> David