Sorry I can't remember the item [sold my Benz], but if you go to Section 24 Electrical Troubleshooting in the CD Manual you should find an illustration.

You can also go to the same parts catalog the Benz dealer parts dept uses.
Go here...
http://epc.startekinfo.com/epc/welcome.jsp

In the event the electrical plugs and a few inches of wire to the stereo are ok, I'd like to buy them if you're not going to use them. I want to put the stereo from my 94 e320 into another car, but need the plug end so I can wire into another car.

Good luck with the rewiring.

Post photos that should help us ID what you're trying to rewire.