Bluetooth Noise

Hey Guys, its been awhile since I've been here. Nice to be back. I gotta quick question ya'll might be able to answer. Ya'll may or may not remember that I bought a salvage title 2012 ECO MT and that the microphone from the Bluetooth was missing. I recently had the car in for service on an unrelated issue and thought that I would get that seen about while I was there. The technician got it all working (along with the fog lights). Long story short, as I've been using it over the last couple of days, it sounds really good at first and then I get this weird noise like someone is wadding up a sheet of paper into the microphone. The person driving the car cannot hear it, but the other end is distracting. After awhile it almost seems like i can hear a voice in the noise like someone talking (my wife can confirm this! LOL). CB bleedover maybe? So now, I'm trying to pay attention if there are any truckers around while using the phone. It does seem to come and go depending on how close they are. I will post anything else as it happens...thanks!