It's deffo an rcd 510 but they do dab and non dab versions I put one in my old mk5 gti there 6 disc MP3 and you can play MP3 direct from the memory card in the front saves messing about with ipod and iTunes etc
Don't suppose that's in a blue 3 door gti dsg is it 05 plate I left a blue memory card in mine as well lol