When you use your car’s built-in speakerphone feature, the speakers in the car door reverberate, sending the sounds outside of the car. Maybe don’t do this while your car is parked. Everyone in the neighborhood or store parking lot can hear your very intimate or business-related conversation.


Because you think your car’s vibrations is the biggest privacy problem when you make a phone call?
??? I don’t understand what you’re trying to say here.
I’m telling you that the car doors act like a loudspeaker, amplifying the call outside if the car. Everyone in the neighborhood can hear your private conversation about your affair, or urologist appointment,or whatever. If you think sitting in your car talking over bluetooth is going to give you some privacy, it’s quite the opposite.
I have never walked past a parked car with the windows up and heard what was being said inside unless the person inside was yelling.
I have. Lots of times.
Well maybe you should use them more wisely…
Using the car speakers as a hands free set, I can hear every word the person on the other end of the phone is saying from about 30 metres away.
I cant hear the person sat in the car but
Take your pick from the phone or the car (if newer than 2015ish).