I'm in the process of installing new E fans. The black relay on the left with the purple, yellow, black, and red wires is from the old fans. He had the red wire with the yellow connector hooked up to the circuit breaker on the right. Can I remove all of it? And if not what do I hook the red wire too? Basically what I'm asking is was the circuit breaker from the factory or can I take it off as it was part of the old kit?