Help quickly needed

[Kolka]

I have bought renoult master (some time ago) and in its equipment there is also radio Philips 22DC229\62 Renault (standardly given, i think). Now I want to install hand-free system (to answer the mobile during driving), but my instruction doesn't say much about how to do it there. There is only short note 'connect the yellow music mute cable to the car stereo. See J in the illustration on page2' but the neither the illustation and the instrucion, don't say anything about controling work of this device. Previously I have Opel, and there when the phone called, the radio has swiched himself off. Now I want to do the same at master. Cell, which I wont to connect is sony ericson. it would be nice of you, if you tell me how to connect mass-control (I hope, you would understand my translation from polish) to stereo car. Could someone help me? I would be grateful for any help.