Download this plugin for windows media player(It works on 10...not tested on 11).
http://tools.veloc-it.com/tabid/58/g...7/Default.aspx
It allows windows media player to play shoutcast.pls(shoutcast playlist files). You can then save the shoutcast streams you like as a playlist and be able to select them in streetdeck. I would create your playlist using another computer and they copy the playlist file to your carpc.
Not as intuitive as having a digital mod actually display the shoutcast radio guide, but you can at least just punch in your favorite streams and have them readily accessible.