E46 Cell Phone Where Is The E46 Cell Phone (steering Wheel Button) Pre-wire Connector Located?

Where is the E46 cell phone (steering wheel button) pre-wire connector located? - e46 cell phone

I'm trying to adjust my Bluetooth kit for my 2000 323Ci own. I just found out that the phone button on the tie rod ... Ideas? I suppose somewhere in the phone kit that BMW is simply plugged in. But where?