tupperware
I just installed my GPS on my new 2012. The black trim piece on the left side snaps on like the older wings.
Carefully pry up on the trim and it will come loose. I used a small screwdriver and a piece of cardboard (to protect the paint).
The top of the strip has a hook on it and the bottom has tabs that lock into the lower fairing.
Just be careful and it will come right off. That also will allow you to remove the left pocket, since part of it is under the trim piece (the left pocket door now comes out with the pocket).
As far as getting to the battery, you can run a stiff wire or a piece of plastic tubing under the shelter toward the left pocket area and then pull your wire.
Or, use the accessory plug inside the left pocket. It is in the same rubber cover as the aux audio hookup.
Not hard, just take your time to avoid scratching the paint.