Bluetooth Noise/Static

Hi all,

Since I got my S3, I've been connecting it to my car's built-in bluetooth headset for music and for phone calls, and it's been working flawlessly.

Anyway, about 2 weeks ago it started making weird noise when I'm trying to call someone. At first I thought it's a connection issue, I hang up and call again, and it works fine. But at the moment, it happens all of a sudden during phone calls.

The issue is that the phone itself is still working earpiece and mic even while the bluetooth headset is connected and the bluetooth headset green button is ON. Which creates an audio loop and makes all the static and noise.

I've read that people started getting this after the JB update, with me it happened so slowly, I'm not rooted to try ICS back again. However, I tried to diagnose by connecting my old XPERIA arc to the car and my GS3 to another bluetooth headset. Same problem with the other headset, while the arc and the car work perfectly together.

I also tried to disable NFC and even removed the NFC sticker from the car completely....still the same problem.

Any idea how to fix this, or even bring it up to samsung to try to fix in the next update?