Sup guys, I'm new here, but I'm really into my coming Z. I have been ordering and readying parts so that I have everything ready to get installed right away. However, I do have a few questions about Japan only HUs. First, does the Sony WX-7700 HU support the connection of an Mp3 CD player? And does it only display in Japanese? And between the Sony and the new Panasonic CQ-VX7700-the color screen HU-which one would you buy?