Veedubs LED T6.1 replacement rear lights

[Spencerpie]

I bought some VeeDubs rear LED lights with dynamic indicators for my T6.1. It has factory fitted LEDs already (which don’t have dynamic indicators I don’t think) but I smashed one and it was cheaper to buy a new set than just one VW replacement. I have looked on the forum and they look simple to change over but can anyone tell me what these bits in the photo are for and do I need them if I’m doing a straight swap from factory LEDs
Thanks