Can I apply 12v to cluster to test LED conversion?

I have my new cluster here on my desk after doing the blue LED conversion like my last one had, and I was wondering if it was possible to apply 12v from my power-supply to this cluster to mimic the parking lights/head-lights being on so I can see if I have the bulbs installed properly or if they need to be reversed.

This would save me the trouble of installing the cluster in the car(a week or two from now after the motor swap is done) and finding out the hard way that a bulb is installed wrong.

I wish I could find it. I saw a post on here maybe from G2Racer I think that showed the power pin outs for the lights on the back of the cluster. Best chance is to see the wiring diagram in a manual or someting unless someone can find the post and put the link in this thread.