There's likely wires already there - for the lights on the compass. As to running new power wires, you just fish em down the pedastal, keeping them out of the cables/chains. Remove the compass, then there's 4 screws holding the top of the pedestal on. (assuming an Edson pedestal)
From there you can drop under the liner alongside the morse cables for the shifter/throttle. Then fish over to the chart table if that's where your panel is. If your panel is behind the galley, that's even easier to fish. You can add a fuse/breaker or piggyback on an available fuse/breaker that's appropriate size for the wire and is a similar function (accessory, radio, etc... obviously not "steaming light")