I have a 1990 Coupe (purchased new) with 26000 miles. The Bose Gold radio with CD player has probably been used a total of 40 hours. Now, when I place a CD in the slot, it gets pulled in and about 20 seconds later it is rejected and the display indicates ERR. Also, the left front speaker makes a very loud whistling noise and the right rear speaker makes a loud pap-pap-pap-pap noise. The volume control has no effect on the speaker volume.