Yea its not a hard project at all. There are a few clips where the center console meets the radio stack, and then underneath the cup holder I think there is a bolt or two. Then remove your shifter trim and your center console with the cupholders shoud come up and out.
Then I believe the 12volt port just twists away and then the reverse for reinstall.
On the topic of adding another, I would run it on a separate circuit, you don't want to overheat anything and start a fire if you're ever running both ports at the same time.