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: Smart City Brake Support (SCBS)
The Smart City Brake Support (SCBS) system alerts the driver of a possible collision using an indication in the display and a warning sound when the Forward Sensing Camera (FSC) detects a vehicle ahead and determines that a collision with a vehicle ahead is unavoidable while the vehicle is bei ...

Mazda 6 Service Manual: How to connect USB port/Auxiliary jack
Connecting a device 1. Open the console lid. 2. Connect the connector on the device to the USB port. Connecting with a connector cable 1. Open the console lid. 2. Connect the device plug/connector cable to the auxiliary jack/USB port. Pass the device plug/connector cable through the notch i ...