Sanwa flash on xbox 360 SFIV fight stick

hello, i was wondering if anyone could help out with this. i would like to put my sanwa flash on the xbox 360 se fight stick if possible. i think all i need to know is where on the pcb is the +5VDC where i can solder to the flash and that should be it right? if anyone has attempted this please help me out. this is my only joystick left and lizardlicks is still back ordered so i have no other wat to get another joystick for it. :crybaby: