If your DVD player won’t play discs in your car, there are a few things you can do to try and fix the problem. First, check to see if the player is properly plugged into the car’s power outlet. If it isn’t, try plugging it in and turning it on. If that doesn’t work, you may need to replace the player’s battery. Finally, if all of those solutions fail, you may need to take your car into a mechanic for repairs. ..