As a new 1998 C280 MB owner, I was nosing around and found the cell phone antenna in the center console. Read about how some cars have these as factory options. Can anyone give me info on where I could find the correct part number for my car and possibly where I could buy the phone unit, new or used?

You'd be better off just getting something nice installed at a cell phone specialty shop. Cell phone technology has advanced rather rapidly from what the car is really equipped to handle.
True the car was pre-wired for the phone, but if you install what the car originally came pre-wired for, you're talking ANALOG, no digital capability at all.

Gilly

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Good point! I forgot about that (analog/digital)! Thanks!