Ok so i got in touch with Lionel support and they said they do not have a wiring schematic for my particular engine. Weird i know. its the 8-85015 - L/S Milwaukee Road GP-20 (Command Ready) Apparently its not like any of the other G scale engines that Lionel produced not even its sister engine the Burlington Norther GP-20.   if anyone has this engine, i need a photograph of the main board and where the cab lights plug in. i guessed at it and they work ,but i want to be sure. Thanks.