1. bluetooth 4.1 version, also support 4.0 /3.0 /2.0.2. Suitable for for Alfa Romeo 159 (models 2007 onwards)and for Fiat Grande Punto (2007 models onwards), Plug the 6-pin connector into the socket back of your radio.3. Insert this item to the back radio then connect the red wire to 12V+, the black.4. 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.5. You can hear music from your phone/pad/mp3(They should have blueooth function).Note:1. Most Car have this type of radio, but there are a few with a 'Tuner List' type head unit which this cable will not work with.2. This adaptor can still be used if you already have a CD changer connected to the radio as it uses a different socket.3. We don't confirm 100% to compatible above car model years, please make sure that connector can fit for your car before you order it.Model: B81444Total Length: 24cmMaterial:ABScolour:blackPackage Contents:1 * Bluetooth Adapter AUX CableOnly 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.