When playing a CD, it will stop and cease playing. It takes along time to eject the CD

Car CD Players get dusty from road grime. Buy a CD Cleaning Disc and run it is a couple of times. The laser that reads the tracks is much lower power, and if it can't read the whole tracking system, it ejects the CD. The cleaning disc has little brushes that cleans the optic lenses.

https://www.google.com/search?q=CD+Cleaning+Disc

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sounds like a perished rubber off one of its wheels inside.

the lens is probly dirty, open it up and use a soft sock or soft cloth.

this is a longshot, try unplugging it, wait about 30 seconds and plug it back in.

Check to see if something is jammed in it

take the radio out and take it apart and move the sensor out of the way and take the CD out you might have to replace the CD sensor

Its possible the cd player is defective, I would get a paper clip and find the eject hole that is on every cd player. It might be hidden along the lip of where you stick the cd into the machine. Once you have the cd out, put in a cd that you have played before or on another cd player. Once you know that the player works or does not work you can figure out if you are going to replace it yourself or have the dealer do it.

The CD load/unload mechanism appears to be malfunctioning.You have to take the radio out and see if you can manually remove the disc or pick up a used radio from the scrap yard

if the cd can be ejected try another cd. if it still will not play the motor mechanism is defective