Just starting to wire my elec. fan with my flex a lite controller that controls the fan to come on and runs it at 60% to 100% speed. The kit comes with instructions but I was wondering if the control box has relays built in or if I should add them, it calls for a fused wire from the battery,a ground and a keyed power source. The rest is easy because it is all numbered. I also can add a manual on toggle switch as well but I do not know if it should have a relay before the controller, or if it is all built in. The flex a lite kit is part#31165. Thanks for any help.