I have done a similar installation on a BeoVision 5 which is the same chassis as an avant. You need the new STB chip, which is part number 8344785 - it has the apple remote on it but I am not sure about the virgin box. Then you need a RBG converter with cables - I used JS technologies : http://www.js-technology.com/product_info.php?products_id=52&osCsid