Cell phone wiring in 93 300E 2.8

[EricKadison]

My 93 300E 2.8 is supposed to come equipped for a cell phone -- including a hands-free setup. I recently bought a Motorola StarTac phone and would like to connect it into the existing system.

I've been told that, with the factory cell phone kit, the cell phone silences the (factory) radio and uses the existing speakers along with a mic mounted in the high center console (next to the sunroof switch). Does anyone know if this is correct?

Secondly, does anyone know if and where a wiring harness can be purchased that will allow connection of the Mercedes system to a generic or Motorola phone?

Thanks
Eric

[rick]

I am trying to do the same thing myself. MBUSA, as well as two dealers say you cannot go digital, BUT search and read the posts by michael he has been helpful and has done what we want.

[Michael]

Doing a Startac setup would require wiring diagrams for sure; I haven't had to go that deep.

The functionality of interrupting the radio when the phone connects to a call is pretty standard fair; my Nokia hands-free setup in my wagon interrupts my Alpine Head Unit no prob.