I have a 97 tj with the upstream and downstream O2 sensors. The problem is the prior owner cut the sensor wires off and left the sensors in the exhaust pipes after rounding them off. I know how to get the rounded sensors out (heat and brute force...lol) , but I need to figure out where the new O2 sensors plug in. I don't see where the plugs-ins are for the new sensors. Anyone know how to explain where they are at?