1. Verify that there is no continuity between antenna feeder terminals A and B using an ohmmeter.

2. Inspect for continuity between the antenna feeder terminals using an ohmmeter.

Front antenna feeder inspectionMazda 6 Service Manual: Receiving an Incoming Call
When an incoming call is received, the incoming call notification screen is displayed.
The “Incoming Call Notifications” setting must be on.
To accept the call, press the pick-up button on the audio control switch or select
on the screen.
To reject the call, press the hang-up button on the ...
Mazda 6 Service Manual: Battery recharging
Warning
Keep any flammable away from the battery, otherwise evaporated gas
of the battery fluid may catch fire, and cause serious injury or death.
Caution
When removing the battery, disconnect the negative battery cable
first and install it last to prevent damage to electrical compo ...