The Volkswagen Touran comes with a factory issue CD-player and AM/FM receiver already installed. If you would like to upgrade the stereo system to a more advanced aftermarket system with features, such as DVD players, MP3 players and satellite navigation, you must first remove the old stereo. This can be done with a couple of tools and does not require the removal of much of the dashboard.
Disconnect the negative cable from the car battery terminal by twisting it off with an adjustable wrench.
Pry off the four corners of the radio trim panel using a flat item such as a kitchen spatula. Start on the right hand side and work your way around the bottom to the left hand side. Pop off the radio trim panel.
Remove the screws securing the radio to the dashboard.
Pull the factory stereo out of the dashboard.
Pull out the thick black radio antenna cable from the back of the factory stereo.
Disconnect the radio wire harness from the back of the factory stereo.