I just took delivery of a 2020 Ri237 with Coverfire setup. Sound systems works and sounds great except that when I connect my iPhone Wired Aux/USB or Bluetooth a faint beep comes through the speakers. The noise does not increase or decrease with the volume. It also continues if the music is stopped/paused. The beep only starts when I connect the phone, but does not go away until I turn off the system with the dash mounted "Radio" power button. I can even change the source and the noise continues. I haven't had a chance to check for loose connections yet. Any help is appreciated.