First of all your 9504 will now be a 0272 firmware as it has been updated to latest dash and the drive will be locked. U will need a x360usb pro v2 or x360usb pro v1 & some kind of ck3 to power the drive. Most sata chipsets are not compatible with the slim drives. Mxic Chip is the Russian hack so u will need a Sputnik probe/switch for the safer option. Just read the tutorials on here for the rest.
Blakey beat me to it.lol.