Scaly, you were asking about changes to the speedo. On my UK B5 (2014) the speedo looks like this:
New speedo
I've pulled out one of the bulb holders, which is for the "push in" bulbs. The central panel is now in white, to match the new gauge with the MIL in it.
These are the new LED bulbs I fitted, which I bought from eBay:
LED replacement
As previously mentioned, these are polarity sensitive so you may have to fit them the other way round - test before assembling. They won't work in the indicator warning light, as the current is bi-directional, so I made my own bi-directional LED replacement: