Lincoln

I want to install a handsfree car kit in my sister's car. Was the '97 prewired for a cellphone??? Can I tap into these wires and does anyone have a pin-out or diagram for this??? I did the kit in my BMW and all the factory phone wiring was easily accessible under the center console and I was hoping for something like this in the MB. I really just need power (switched and constant), radio mute if available, and speaker or line-in for audio...I will use the mic and antenna from the kit.

TIA