You'll probably need the h7 adapters, VW uses a wierd connection to hold their bulbs. Something like

BlyilyB 4-Pack H7 LED Adapter... https://www.amazon.com/dp/B0859CYFV3?ref=ppx_pop_mob_ap_share

It goes between the bottom plate and fan to lock the led in.

Edit: just saw the part about new headlight housing nvm then