Default [Q] Bluetooth Audio cuts out after update to 4.3

Blue tooth audio cuts out after updating to 4.3, and its driving me NUTS.... its linked to my car audio, and cuts our for a second or 2..

Trying to determine why.. I've tried turning off everything (GPS,nfc,etc.... ) to determine why.

I noticed that after the update (google music) was turned on, which i had to turn off.
( haven't tried it since, but i will this evening)

anyone else run into this issue ?