MP3 CD PLAYER

[snf280]

HI FRIENDS
I'VE LITTLE KNOWLEDGE IN ELECTRONICS.CAN ANYBODY GUIDE ME FOR THE FOLLOWINGS
I'VE A MP3 CD PLAYER.IT CAN ALSO PLAY VIDEO (SOME DUPLICATE COMPANY),I WANT THIS PLAYER TO RUN IN USB FLASH MEMORY INSTEAD OF CD.I WANT TO KNOW THE PIN CONFIGURATION OF THE CD READING LASER HEAD. AIM IS TO HAVE USB FLASH MEMORY INSTEAD OF CD IN THE CD PLAYER

NEXT THING IS ,I HAVE A 555 CIRCUIT WITH LDR,I WANT TO SWITCH A
ELECTROMAGNETIC WATER TAP(12V 500mAMPS).I HAVE A POWER SUPPLY OF 1AMPS SOURCE.THIS BURNS THE 555 IC

MY INTERST ARE TO MAKE
1.MANUAL WASHING MACHINE TO AUTOMATIC USING PIC 16F84A.
2.DOOR OPENING CIRCUIT USING MAGNETIC CARD (OLD ATM CARD).

THANK YOU ALL FOR ANY GUIDENCE.