The audio is severly distorded using a bluetooth headset while the phone is plugged into power using the Samsung i500 Vehicle Mounts built-in power port. The only workaround I have found is to flip the phone around and plug power directly into the phone instead of the Samsung i500 Vehicle Mounts built-i power connection. This issue has been reproduced using different i500 Vehicle Mounts, different USB power cords, and within differnt cars. There doesn't seem to be anyway to get the distortion to go away except to not use the built-in power port on the mount. Please let me know if anyone knows a fix for this issue.