Since the rear door has it's hinges on the driver's side, there is a wire channel (Boot) that connects the door to the rest of the body. You can run the wires through there and along the side panel (You can take it off if you want or wait for final routing when you go to Dynamat), along the door sill and up the apillar kick panel to the dash.
I just installed some switches for a foglight project and rear door popper (Yes, I do have the pics of the switch bezel and switches, just got to get them up for you), The dash splits in half, upper and lower and affords the easiest access to components I have ever seen on any vehicle. A Phillips screwdriver and patience is all that is required...
Have fun!