I have the Parrot MKi9200 UK Bluetooth Car Kit in my golf. It was fitted when I got it. Since then I have updated it to latest edition and it connects 2 phones, mine and work phone, plus its got iPad in lead, USB in lead, 3.5 jack in lead and it also takes a SD card in the rear of the screen display. Plenty options, sounds good too when playing from SD card or USB. Plus stereo doesn't need to be turned on when listening to music through the Parrott kit.
So easy to use, upload your own photos to display on screen. I'd be lost without mine now, it even switches between phones automatically when a call is received and you can easily change the main phone.