Arduino simulate an LC75854E problem

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Hello i'm trying to make my arduino simulate an LC75854E too send out a key output
to use an Gemini CDX 602 without remote control unit but all i'm getting is random stuff
sometimes it ejects the cd, sometimes it plays it and i wondring if it has to do with some clock pulses are wrong or something?

the LC75854E is sending out DataOut to the main unit microcontroller with keydata

link to ic : HTTP 301 This page has been moved

this is the code i have now:

//Pin connected to ST_CP of 74HC595
int latchPin = 10;
//Pin connected to SH_CP of 74HC595
int clockPin = 13;
////Pin connected to DS of 74HC595
int dataPin = 11;

void setup() {
  //set pins to output because they are addressed in the main loop
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
}

void loop() {
        digitalWrite(latchPin,LOW);
        digitalWrite(dataPin,LOW);
           //Try to press play
           shiftOut(dataPin, clockPin, LSBFIRST, B00000000);  
           shiftOut(dataPin, clockPin, LSBFIRST, B00000100);  
           shiftOut(dataPin, clockPin, LSBFIRST, B00000000);  
           shiftOut(dataPin, clockPin, LSBFIRST, B00000000); 

        digitalWrite(latchPin,HIGH);
        digitalWrite(dataPin,HIGH);
}

would be happy if somone know whats going on why it makes the random stuff??
been messing with this for a month now and haven't figured it out

i've posted this here because LC75854E is a lcd/keypad controller