ok i found the plug it is in the back of the engine part of small harness which is connected to a very large harness on the fire wall. its a two man job after you disconnect the 02 sensor from the exhaust pipe. someone has to fish the o2 sensor up from up top. you also have to loosen the large harness from the firewall so you have enough slack to get to plug from up top. someone with long arms will have to disconnect the plug while keeping the other side from sliding down in back of the engine. you can then connect the new o2 sensor to the plug and fish the other end of the o2 down towards the back of the engine, then you go under the car and screw it into the exhaust. they put the plug in the back of the engine i was able to a copy of the shop manual it shows the plug on side of the engine its not there at least on 2006. i hope this helps someone else good luck.