I don't know what you mean. The handsfree wire from the HU? All that does is mute the sound when the phone rings.
The car phone loom? It is located on the left-hand side of the center console. To get to it simple open the glove box (or take it out is easier), undo the 2 screws holding the side panel on (right hand side of the glove box). Move the passengers seat to its back most position and there is a screw on that panel down beside the seat, undo that and the whole panel will come off. Once it is off you will see a white 6 pin connector there.
Here is the wiring codes:
Orange---------- +12 volts
Black/green------Ground
Yellow----------- +12 volts accessories
Yellow/white-----Radio mute - active low
Blue-------------Audio +
Blue/white-------Audio -
Copied from another forum for ease.