When working on electronic components, make sure the work area is clean and dust free.

Make sure your hands are clean and free of oils and grease.

Eject the CD before disconnecting the audio unit to prevent damaging the CD player's load mechanism.

If you are replacing the audio unit, write down the audio presets (if possible), and enter them into the new audio unit.

When the audio-navigation unit is replaced or disconnected, do the Map Matching. This part of the initialization matches the GPS coordinates with a road on the map screen. To do this part of the procedure, make sure that the navigation system displays a map, and drive the vehicle on a mapped road shown on the map screen. Do not enter a destination at this time. When the name of the current road you are driving on appears at the bottom of the screen, the entire procedure is complete.