That adapter does (sort of) work with the standard head-unit. You should be able to use it to speak and listen to your phone through the microphone provided and the sound system speakers via bluetooth. I think you will still need your handset to dial out unless you have voice dialling support. You should also be able to stream music via bluetooth as well. I find the bluetooth connection is a bit temperamental, however - you may well find that if you switch the engine off and remove the key it won't automatically reconnect, for example. Also, you will need to manage music playback via your 'phone or whatever, so it's not really handsfree. I don't think the head-unit has a phone mute line-in. Also, you will have to search out and find firmware updates on the internet, and these are installed via the USB connector. You can play music from a USB stick, but I found the quality was dreadful (far worse than Bluetooth). Also, it can only mimic a CD autochanger, so working out what tracks you're playing is just about impossible because all it will do is display arbitrary CD and track numbers. YMMV, etc.