I just put on a new power head and am having issues finding where one wire goes. it is a brown and yellow wire associated (taped together) with a brown and white one coming from the red plug one wire goes to another plug going to the power pack and the other looks like it will only fit in the bracket where the rectifier hooks up due to the size of the connector and the natural bend of the wire. I thought I took that entire system off as a unit. I just would like to know where it goes so I don't cause havoc with the electrical system. The wiring diagrams I have are not showing me this wire