Seems like the most important wires you want to locate, are the speaker
wires.  You could pull each speaker and take note of what colors are used,
as well as the polarity for each.  You can double check this back at the
dash by briefly hooking up a little 9v battery to those same wires and see
if you can get the speakers to crackle when touching the wires to the
battery.  Rinse and repeat for each speaker.  You can then use a test light
to determine the battery and keyed power sources, though it might be easier
to just run those from the fusebox yourself.  A ground should be fairly
obvious to determine.

On Sat, Sep 10, 2011 at 9:53 PM, craig cowan <phishman068@gmail.com> wrote:

> I have an '87 Syncro and i'm putting a Pioneer Headunit in it. It
> previously
> had no stereo at all and all the wires cut. Well, I can find threads online
> but the colors they list for the factory colors on the vanagon side of
> things aren't the same colors I have. Does anyone know what the proper
> colors of the vanagon side of things?
> Thanks!
>
> -Craig
>

--
Casey