I have a 2009 and just finished removing the stickers about an hour ago. I used a blow dryer and 3M adhesive remover.
As Lockjaw mentioned, if there is a kit to make this easier, I might suggest it. Otherwise, here is what I did:
-Warm the sticker area up with heat gun or blowdryer- doesn't take much.
-Peel a corner to start.
-Warm the area ahead of the part you are peeling. If you warm near the area you are holding, it will easily tear.
-Once you have the stickers off, Put some of the 3M adhesive remover on a rag and wipe it around the remaining glue.
-The glue will soften and turn to gel. Use a clean credit card (if you get any dirt or grit on it, you will have fine scratching all over the place) or other plastic edged item to gently scrape the glue off. It will scrape off in layers. Just scrape, then re-apply some adhesive remover.
Make sure to clean the plastic afterwards.
It only took about 30 muinutes and the adhesive remover was fine on the plastic.