My 05 MK5 has factory fitted folding mirrors and puddle lights - gen2 highline controllers
Gen3 are totally wired different as I fitted gen3, wanted to add reverse mirror dip and remove fold in.
They don't work, unless re-wired, which I didn't get round to doing so don't know the wires.
Put gen 3 into gen2 and all strange things happen.
door lock puts windows down, window buttons don't lock, dash displays left door always open....etc.