A plug into the Aux input sitting in my vehicle directly under the ashtray, the other you put in the cigar lighter ... the round button you can lay wherever you want ... I have not decided to him to the dashboard to stick because I would have no adhesive residue in the vehicle. I have attached him with me in the center console below the armrest and the talks funk animals perfectly, you see him hardly and the cable was laid beautifully. The sound and the connection with my Sony mobile 1a ... the only thing on this headset is therefore unfortunately also bad 1 point deduction that you can not receive notification during normal music playback on the radio when someone calls. You have to practice in the AUX mode to be only then it rings, so you have to hope that you do when you do not even listen to his phone ... otherwise the best and easy to install / use headset that I had not missed a call yet. Giant advantage over the Parrot you do not have every 2nd day load the part ...