aftermarket ignition switch
 

Hi guys,
Has anyone used those aftermarket ignition switches? Just purchased one but the connector is a bit different . Mine has a red, red with a blue stripe and a blue with a red stripe wires. The new one has blue with red, red with blue and black wires. I was told it will work I just have to cut the connector off and solder it with the other switch but Im not sure about the black wire. Anyone? Thanks
Ps. 98 cbr f3 model