David Cooper Wrote:

"
1) Does anyone know what the two silver tabs that stick out to the side
on
the back of the speedo(on a 90 GL Cluster) attach to?  They appear to be
the
male end of an electrical connection.
"

David,

I would guess it's the speed sensor connection for cruise control.
(That's what/where it is on other VWs.)  If your van doesn't have cruise
that would explain why it doesn't have a wire running to it.

Damian