I've ordered the Chest Mod and while I'm waiting for my order to arrive, I've already started watching the install videos so I can start right away when the mod arrives. I've also ordered the optional lighting mod for the lid, but what I didn't see in the install videos (unless I missed it) is where you have to connect the wires from the lighting mod below the playfield? I'm assuming they should be connected somewhere to the servo mech where the keypad is also connected?