4 wire sensor jumper

Alrite guys I am running my a6 harness in my ef with the z6 motor with a p28 ecu. I have jumper harness for the ecu and dizzy, bought it from the owner and have no clue what brand it is. So comming from the ecu there's four adapter and a orange and blue wire. Were do that blue and orange wire hook up to. Also the ecu came with a 4 wire o2 sensor, do I just buy a four wire o2 sensor and replace that with my oem and cut it off?