I posted a while ago about the Parrot Asteroid head unit.
I’m having second thoughts…mainly because it doesn’t have the option to slip a CD in, and it is a single DIN head unit. It might look a little odd in the large dashboard of the Golf.
I have been searching eBay for something suitable:
Double DIN, Big screen, plays DVDs (?), and has Bluetooth for calls and music streaming.
I think the Pioneer AVH2400BT fits the bill, and it’s not a bad price:
When installed in the Golf, it should look a bit like this: