If you have better than a dial-up connection try this for on-line service manuals and wiring diagrams-http://mb.braingears.com page 5 is what you are looking for.
(I have done it on dial-up but expect to wait a lo-o-ong time for all the pages to download in pdf format.) If you can't get it to work, let me know and we'll make a wiring list.
