I have a 1999 C280 Sport with the Bose radio package. This morning when I turned the radio on a loud shriek came out and would not stop. This noise is constant and covers up the radio station (which can still be heard vaguely in the background). The noise is nearly as loud as the fire alarm in my house. I turn the radio off the shrieking stops.
Any Ideas?
TIA, EJ in NJ