CD DOOR WON'T OPEN

put some lubricant inside

Could be the PCB9 light and motor control have the problem its on the upper left side of the player.

CD Drive Tray problems
There are two ways to open the CD drive door if the button just below the drive tray does not work.
Go to My Computer and right click on the drive and click on Eject.
If this does not work then you can manually open the CD drive tray by -
Straighten a paper clip and gently insert it into a tiny hole below the drive tray next to the Eject button. Push the paper clip gently until the drive tray pops out, then pull the tray until it is fully out, then you can remove the CD disc.
If you still having problem opening with the Eject button, then the CD drive is faulty and needs replacing.

Sometimes a belt breaks or comes off you need to check inside to see if this has happened.

see this causes and fix it. God bless you
Open Lever If the microwave door won't open the open lever might be broken. This part can be replaced separately.

Door Spring If the microwave door won't open the door spring may have broken. The door spring is located inside the door and keeps downward pressure on the door hook.

Door Latch If the microwave door won't open the door latch might be broken. The door latch is inside the microwave. The door hook, which is part of the door, engages with the latch to keep the door closed during operation. If the door latch or actuator breaks the door may not open.

Door Hook If the microwave door won't open the door hook might not be releasing properly. The door hook is installed inside the door and normally releases when the door is opened. The hook is made of plastic and will break over time. When this happens it will need to be replaced, it can't be repaired.

Button Spring If the microwave door won't open the button spring might be broken internally. The button spring can be replaced.
Button If the microwave door won't open the button might be broken internally. The button can be replaced.

Handle Actuator If the microwave door won't open the handle actuator might be broken. This is a plastic part which can become brittle over time. This part is connected between the door button and the door latch assembly.

try takeing the door panel off and check to see if the rod came out of the lock button.

USE A SLIM JIM TO POP THE DOOR RELEASE CATCH FROM THE OUTSIDE, THEN ONCE OPEN, REMOVE THE DOOR CARD & REMOVE & REPLACE THE DOOR SOLENOID

There is a small hole just above the door on most CD changers. Unwind a small paper clip and GENTLY push it into the hole. This should release the door, and let you look inside. Don't force it because you could damage it more than it is already.

Sounds like the receiver portion of your logic board has quit. The wall control is hardwired and doesn't use the receiver.

The key has to open the drivers door

Raise the car up,support it,& put your battery
charger on the starter battery cable terminal
& ground the black clip

Try charging the battery for 4 hours or so