Who can tell me what the white wire is for? The one with the one white wire with grey plug coming off with the connector? Previous owner cut and spliced and wrapped with electric tape so I dont have the other end of this to plug into. Toyota told me its discontinued. Wondering what its powering and what others have done who might be in a similar position? Can I just put ring crimps on both ends and pass through the fusible link junction box with the other two wires?