ok so i have an motorola Nextel i580 and hooked it to the bluetooth, whenever i get a call the person calling me sounds REALLY distorted so i turn the volume down and even at low volume its still distorting! any suggestions!?!?!?!

i tried going onto the setup menu on the navi but found no volume adjustment for the HFL and my phones volume setting is bypassed becasue its hooked up through the Bluetooth