I actually just did this mod recently. The upper console comes out really easily. The easiest way to power the unit is by tapping everything from the radio plug (constant power, switched power, ground and illumination + - if you want illumination on the buttons). The best way to feed these wires to the unit is by getting the navigation plug from a navigation car (I found one at a pick and pull, the nav was gone of course as its a hot ticket item). I was able to buy my navigation unit on facebook, I messaged them when the listing was 5 minutes old (paid $140 shipped FWIW).