I was checking under the hood after a 4 hr trip and noticed a plug under the ECU just hanging down.It has a larger red wire and a small green wire in it and the plug is gray with a red centre, the part of the loom it comes out of also has 2 wires that go to an earth pop riveted between the ecu and the air box. Should this be pluged into the ECU somewhere?. car is a 03 xr6 turbo, 4spd auto, standard tune as I dont have an edit yet and runs ok, just seems strange to have this plug just floating around with out a cover on it or pluged into somthing. Sorry I dont have a photo of it, I might be able to get one later if needed.