I have this same radio and it resets itself during playback of MP3, when starting the car, listening to a cd or even the radio. I had the radio reset itself 4 times when using a memory stick. I have started the car up and found the radio @ 1200am and turn on the radio and all memory is gone
Car Audio & Video - Virtual Reality - VRCD500-SDU CD Player
Answers & Comments
Is the yellow wire going to a constant power source?
Yes, and I had crimped it to avoid a loose connection later. I think it's internal to the radio since playing a memory stick in the USB port tends to trip it. I started the van this morning, stopped for coffee, got in started it up and sure enough the radio was back to all the defaults