The bluetooth module is made for Radio ISO 8PIN Port . Just plug the 8pin connector into the socket back of your radio You can just Insert this item to the back radio then Connect the red wire to 12V+, the black wire to 12V-. Match your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to play music through car speakers. You can hear music from your phone/pad/mp3(They should have Bluetooth function). This style support microphone handsfree and bluetooth audio .<br><br>microphone size : 150cm Compatible models : For - Premium 5, MCD, MFD 1 For Skoda: DX/MFD 1, MS 303/501/502, Symphony CD & Kassette, SatCompass For Seat: Alana, Aura (CD), Beta, Elba, Lena, Liceo, Scala, MFD Colour:black Material:ABS<br><br>Package Contents: 1 * Adapter 1 * Microphone 1 * DVD navigation adapter cable (random colors, do not accept specified colors)<br><br>Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.