hi guys i found a way to change ur cd player graphics by ur own graphics or pictures gallery
but this features only work in those cd payers that got a option of Oel screen saver.
8850 ,8650, 9650, p1y and many more pres got this option. following is the website from where u can download the software and can install that in to ur pre.
http://pioneer.jp/car/pclink4/howto/index-e.html