Before I got the Camaro I had a Colorado and I took out the stock console and custom built my own, just so I can have my own LED cup holders. Definitely going to have to get around to this once I get a chance but here is what I did with my Colorado:
First I added a toggle switch:
Ran a fused wire from the battery:
Positive and negative wires run under the carpetting:
In case I had to remove the console for whatever reason, I made some connector wires so the whole thing is not completely hard wired to the truck:
The internal wiring for the cup holders to the switch:
VOILA!!! We has power: