I get error ao on my cd player when it reads a cd

Order a new one. It is difficult at best to connect wires to the pins without getting a short. New ones are cheap and available from a bunch of places.

This is a common error with these units when they get dusty from putting dirty disks inside the drive. Just go to your local staples and or walmart and get a 5 dollar disk player cleaning kit. It looks like a plain cd but has small fibers that come out of the bottom of the disc that clean the laser as it spins and tries to read it.

I'm having the same problem worked for a couple of days then just stopped playing music

check that the illum (usually orange)wire is not incorrectly hooked up to acc or perm power as it dims the display for night driving (supposed to be hooked up to your headlight parker switch.)

turn the unit off.then push the power button and hold till clock flashes,then use your arrow keys

Oh yes. Definately. You hook up red and yellow wires together on the positive side of battery. Black negative wire goes to negative on battery. That's all there is to it. Besides the speaker wire which you will have a diagram on the bottom of the cd player to tell you which wire is which

check the fuses first

I read a solution on here where you disconnect the wiring harness for 30-60 mins. to release the power stored in the capacitors. It seemed to work for everyone. I don't know if you tried this for this amount of time or not. Also, have you used a cd cleaner disc? You laser eye may be dirty. Also, since you said it was an old, battered car, maybe the vibration is causing the unit to malfunction. Also, if the unit is installed at the incorrect angle in the dash, it can cause a problem. Hope this helps...

I have the same problem CD will not eject and getting error :S

sounds like slight vibrations from road are loosening a wire connection. re-check all wire connections