ok guys... when installing the instrument cluster, what feeds the lights in it... i know its all connected with that printed circuit... but what feeds the power to that... any one have an idea off the top of ur head....

 

is the power fed to the cuicuit by the wires that feed the volt gage in the dash cluster?

 

Here isa link to the wiring diagram for a 69: http://www.themustangshop.com/resources.cfm

Looks like the Blue-red wire is the one. If you follow it back it eventually leads back to the headlight switch which is also the gauge light dimmer.