I recently purchased the Bob Mezel Mod, only to find out that the stray power cord that was dangling at the back of my Dialed In does not seem to work with the mod. I'm going to buy the official power adapter (https://mezelmods.com/products/jersey-jack-pinball-power-kit?variant=2985809018909) but I'm just curious, what on earth is this spare extra power cable that's just chilling in the backbox? It plugged in perfectly to the sign, but didn't light them up at all. What's it for? Anyone else see an extra dangling power connector?