well, this request brings up a few legal quandries that are generally pushed under the rug when one is building a DIY MP3 system.
First off, MP3's are generally regarded, especially by the music industy, as an illegal option when listening to music. original copies are the only ones legally allowed with the copyright laws of this and many other countries.
also, many domestic and foreign states (this is a global community) have laws preventing the use of any sort of display screen within the sight of the driver. This is an obvious one, in the case of users runing movie programs and DVD with their own cars.
I, for one would not like to see the downfall of such an outstanding online community, because of piqued intrest from certain local law enforcement districts. So, I think it would be best to keep discussions limited to LEGAL MP3 playing options. (i.e. systems that utilize graphic displays only for the selection of music... nothing else.)
In other words, be careful what you talk about....
Also, I regard this comment as person opinion and in no way should the above statements be used to describe myself, the members of this forum, or the Car-based MP3 player community. Also, the statements made may NOT be used without my consent for the purposes of this or any other report or research.