I have a 2011 Sonata. I love the car with one major exception. I have a bad echo on the bluetooth on all phone calls. I have been to local service center for trial and error with other phones. The service center has cosen to change the radio. I have the problem worse then before. Every phone call transmits with an echo. Any advice.?

 

There will always be a delay between you and the other caller. I had this same problem with OnStar in my SAABs. Try turning down the volume or lowering your voice under the speaker.