Mazda 6 Service Manual: No.20 noise occurs at idle when vehicle is stopped in all positions/ranges

No.19 excessive shift shock on torque converter clutch (tcc)

No.21 noise occurs at idle when vehicle is stopped in d, s, l ranges, or in r position

Other materials:

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 ...

Mazda 6 Service Manual: Sunvisors
When you need a sunvisor, lower it for use in front or swing it to the side. Side Extension Sunvisors (Some models) The visor extender extends the sunvisor's range of sun shading. To use, pull it out. CAUTION When moving the sunvisor, retract the visor extender to its original position. O ...