Hi, My pioneer DEH-P3550MP is making beeping sounds and not playing CD's. I sort of lost my face plate so I've just been putting the CD in and pressing on the switch to trick the unit into thinking the face plate is closed.
It was working fine that way and it stopped working for a while and it worked and now it's stopped for good I think. When you put the CD in, it just beeps for a while and does nothing.