It's hard-coded to look that way. You can get rid of the split-screen, but the list of stations/presets is what you get.
Frankly speaking, the F30 LCD is seemingly pre-designed to always have the map up and the other bits of information displayed split-screen or not be displayed at all. Even the iPod screen has layers, doesn't look clean and it's the best of the bunch.
For me, the novelty of all that iPod cover art and stuff wore off after 2 weeks. I leave the map up, do the split screen occasionally to impress others, just use the HUD the rest of the time.
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