This is a part I created allowing me to test wiring harnesses for the CFTBL Retro Snackbar Mod. I simply wired in a 12 vdc source and connected to the correct pins on the z connector so I could do testing rather than plug into the back box circuit boards constantly. You could do the same for a 5vdc or 6.3vdc source or one of each on each plug - up to you. Alternatively you could use it for modding and install under the playfield with a power source and then plug your mods into it. Part 2 is required as it is the lid.