Hi, talked to Tye about this too, but unfortunately no. They
have to change the whole head unit and changer if you want to play
DVDs or MP3.
For VCD, it is just a "adapter box" that they connect to the
changer and this allows the changer to decode VCDs. All your hifi
controls are unchanged and you can change VCDs from the steering
etc. You just need to add a screen somewhere to view the movie.