RESET

                                                   BUT 1          BUT 2

                                                   BUT 3          BUT 4

                                                   BUT 5          BUT 6

                                                           START
gnd is pin 1 / vcc is pin 6

No key pressed , pin 3 vcc , pin 4 vcc ,pin 8 vcc 
reset emergency pressed , pin 3 vcc , pin 4 vcc ,pin 8 vcc 
BUT 1 pressed , pin5 gnd  
BUT 2 pressed , pin7 gnd 
BUT 3 pressed , pin9 gnd 

pin 9 blue wire to pin 2 cn2 internal connector
pin 5 yellow wire to pin 6 cn2 internal connector
pin 7 green wire to pin 8 cn2 internal connector
pin 1 red wire to pin 9 cn2 internal connector gnd