Trunk lamp inop.... Bad connection??

[HFR_Racer]

No luck on getting my trunk lamp to function.

1) Bulb is good.
2) Continuity throught the trunk lid switch is good.
3) No voltage coming from the wiring harness. The lead has a black w/
white and a brown lead.
4) I can't tell where this lead goes to since it's routed into a bulkhead
harness behind the instrument panel.
5) I think the power should come from lead number 11 (indicator light)
terminal at the main fuse block. This terminal is hot when the key is in
the ignition and headlamps are on.
6) No fuses are blown on at the main fuse block.

Maybe a bad connection of a terminal. Anyone have an electrical diagram for this circuit a 86 Targa Carrera?

If nobody answers I guess I'll start digging... I'd rather have an idea of where to start looking for this bad connection. An elecrical diagram would help.