1990 190E 2.6 Power Antenna Connection

I've bought this car a month ago, and the previous owner installed a Sony CD Radio, leaving all the connections for the power antenna out; I've seen the original connectors behind the radio, but I do not have schematics for the factory wiring, this way I can connect it. Does someone has a copy of that section of the dashboard wiring? Even if I need to pay for that copy, I will appreciate the help.
Thank you
Jerry