car is 98 passat. i need to know what wires to connect to the ignition (the red, green, and blue wires coming off the unit) and how to connect the parking brake safety switch, the wire that connects to the ecu ground, and the wire that connects to the ecus o2 sensor wire. (gray, white, and black, these are used for the air/fuel, o2 voltage, and battery voltage functions.) 6 wires in all