So I bought a 97 mark thursday changed the oil and air filter yesterday the passenger low beam headlight was out but the guy had the "new" one and gave it to me with the car but last night after the oil it was too dark this morning I looked at it and the plug is different, it will work on the drivers side but not the passenger I can't seem to find anything I'm just wondering if the plugs are supposed to be different or my car is jacked up