As Chris offered, go and see him, or at least look for where power might be available and when?
If there is none, you need to see if you can supply some... but I am sure if they are factory fitted, you need to set the switches correctly or there is a problem with it. Chris said the Stalk...
Isn't there wiring looms in the manuals from the G35 that will help?
As for not sure if there are globes installed, they will make a difference to whether they work or not!!
My pick if this is all too difficult is go and see Chris or at least chat to him.