i bought a 2005 mazda 3 2.3L auto hatchback that needs a motor..i was needing help i found a 2004 2.3L motor but its a 5speed..the mazda dealer said it wont interchange with a auto.does anyone know if it does or wont ? or if any other 2.3L out of a 2004-2005 mazda will work..and does it have to be an auto car..