I Dynamatted in one of my screwdrivers.
Everytime I pull out the center console, I forget how I did it the last time.
Make sure and pull the parking brake all the way up. You'll kind of have to work it back and forth to get it out. You might want to put a towel on the end closest to the HU to keep from scratching things.
Once you get the console out, you should be able to tell where the connection is. You'll see the wires running to the 12v outlet.