Nice!
If you remove the ash tray, you can use some MDF board on the front to close it off and cover it with some padding and material to match the interior. add some USB power ports behind the cup holders and hide an inverter under it. wire in a couple of house plugs one front and maybe one in the back for laptops or other creature comfort gadgets that use 110 AC.
if you want to get really fancy, install a bigger inverter somewhere else and run wiring to it and to the back to have on the road power for things a mini fridge and whatnots.