You might be interested in my wiki
post:  http://www.vanagonwiki.net/index.php/Instrument_cluster_overhaul

Edward

At 07:41 PM 4/13/2008, Jim Felder wrote:
>The instrument panel in my 90 has been removed and replaced one too many
>times. The foil circuit is ruined at the long connector. I spent half the
>afternoon gluing a plastic replacement in place to go under the folded foil,
>but the copper connector on the blue foil was in bad shape and I never got
>it to work right. When my headlights are on, the leds go crazy and the tach
>drops and the clock display goes blank. I know for certain that this is all
>related to this connector, not ground wires. I got it to work momentarily by
>holding it a certain way, but then more plastic crumbled and removing the
>connector degraded the copper strips even more.
>So now I have three possible choices. Replace the foil wiring, get a used
>instrument cluster in better shape than mine, or try to solder and wire up
>the existing connector copper to new wires, cut the long connector off and
>have individual wires go to the extensions soldered to the copper strips.
>
>Soldering to those copper strips looks iffy.
>
>Any thoughts?
>
>Jim