1. Verify that the joint shaft is not twisted or cracked.
2. Turn the joint shaft by hand and verify that the bearing rotates smoothly and freely.

Drive shaft
Joint shaft removal/installationMazda 6 Service Manual: Service cautions
HANDLING INSUFFICIENT REFRIGERANT LEVEL
If an insufficient refrigerant level is detected at troubleshooting,
do not charge (add) the refrigerant. Because an accurate amount of
refrigerant cannot be determined from the pressure indicated on the manifold
gauge, never charge the refrigeran ...
Mazda 6 Service Manual: Operating the Radio
Radio ON
Select the icon on the home
screen to display the Entertainment screen. When selecting the desired radio, the
following icons are indicated in the lower part of the center display.
AM/FM Radio
Favorites Radio
Selected stations can be registered for convenient operation. Up to 50 ...