I removed this radio from my project car about 4 years ago. The radio powered up and activated and played a small speaker I had slaved into it. It didn't work in the car, but that was due to an electrical issue. I polished the display wrapped it up and put it in storage. I got ready to do a "test install" in my refinished dash, when I realized that the tuner would not operate. pointer remained stationary. I opened the box and found that the device that operates the "ring and pinion" just slips. I put the box back together and figure to let someone who is familiar with these radios look at it. I don't remember any issues with it before I put it in storage.