heres what i got, an xbox in a car, and im giong to have only an X3LCD to know what song is playing and just have like a contrller hacked apart for the controls, i just need a dash or something that will boot strait up and be ready for me to press like a play buton. and have like the arrows on the controller for selecting songs. Got any ideas?

that seems really elaborate just to play songs haha. You could just buy an ipod or a dell DJ and then buy an FM transmitter to play songs through your car stereo.

Anyway, I'd suggest unleash x, to change songs you hold down the white button and press left and right.

However, your best bet would probably be xbox-media centre, I don't really know how it works with the lcd display, but media centre was designed (suprise suprise) to play media haha.