Genres works for me. I have about 35g of music on my pod and the best way to navigate through it is using genres. Nothing seems to stick for me so I want to try the random tomorrow.

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2007 X5 3.0 Alpine, Tobacco, Dark burl, Prem, Sport, Tech, Rear Climate, 3d row, Running boards, Ipod.

2006 530i Amythest Gray, Sand, Dark burl, Sport, Comfort seats, CA, Sat and best of all 6 speed.

Retired:
2007 X3 (auto)
2004 Z4 5 Speed, Sport (RIP)
1995 325i
1989 325i