I use play lists for mine. I find this much easier way to find whatever I want to listen to. On iTunes you can make playlist of almost anything you want (album, artist, music classification, etc.) and you can make each playlist as long or as short as you want it to be by adding or deleting songs. You can use the same song, artist, album on multiple playlists if you prefer. Very flexible and easy to do.

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2008 4.8i Mineral Green Metallic Sports Package, Technology Package, Cold Weather Package, Rear Climate Package, Premium Package, Premium Sound with iPod adaptor & Sirius Radio, Auto Tailgate, Head up display