I bought this on Amazon and it fits great. You just need a low profile 12V AC adapter. The ones with the flared ends won't fit. I bought one that's supposed to be flush with the socket but it's an inch longer than the outlet. If you can get one that's short and flush then it should be perfect.
I've seen them in red, blue, and black but the black ones had to be shipped from China.
The CC lacks a lot of storage cubbies so this helps a bit.