So i am runnin the first delete box and i ordered the code free one, and they sent me a box that says the eliminator and the plugs wont match up at all, there are no directions or anything, o yea by the way this has been six months ago, so i just put my old one back on and still have this one sitting in the house. Does anyone know what it is or am i doing something wrong? Its got a number on the back, EEC-325X4... any ideas guys... thanks