The factory installed external CD changer needs to be removed/disconnected from the car completely if you want to use all functions of the Gateway (music playback). This is because the Gateway emulates these functions, and the car can only work with one CD changer in the same time. If you don’t remove them, any various problems may happen like:
- Volume changing automatically / randomly within 10-15 seconds or more
- CD changer (Gateway) as a source can or cannot be selected but it reverts you back automatically to radio mode shortly (within 2-3 seconds)
- Function buttons are not or only partly working (e.g. FFW)
- Error messages from the car
- The Gateway or car radio resets, is not available at all
Volkswagen/Seat/Skoda: In some cases the car has MDI module instead of a CD changer. In this case the MDI needs to be removed/disconnected, and after that the Gateway could be selected as “Media in”. (Coding is mostly also required, please read section G!)
What is an MDI (Media Device Interface): The MDI is an external media device. It might have AUX, USB and/or iPod connection, that you can find in the glove box or center console mostly. The MDI device itself can be built together with these connections, or can be a separate unit too: you might find it where the connections are or behind the dash of the car.