1. Disconnect the negative battery cable.
2. Remove the headliner.
3. Disconnect the connector.
4. Remove the screws, and then remove the sunroof motor.

Sunroof unit disassembly/assembly
Sunroof motor installationMazda 6 Service Manual: Operating Tips for WMA
WMA is short for Windows Media*1 Audio and is the audio compression format used
by Microsoft*1.
Audio data can be created and stored at a higher compression ratio than MP3.
This unit plays files with the extension (.wma) as WMA files.
*1 Windows Media and Microsoft are registered trademarks of ...
Mazda 6 Service Manual: Radio Reception
AM characteristics
AM signals bend around such things as buildings or mountains and bounce off the
ionosphere.
Therefore, they can reach longer distances than FM signals.
Because of this, two stations may sometimes be picked up on the same frequency
at the same time.
FM characteristics
An ...