The radio does not shut off when the left front door is opened

Open that door and check and see if there is a little black push button switch. It would be in the door jamb area and the idea is the switch would be pushed in when the door is closed. If you have one then that could be bad or damaged. If you don't see anything like that then it's built into the door lock actuator assembly. In that case you can spray some WD-40 into the door lock mechanism on the door and open and close the door a few times to loosen it up. That works about 50% of the time. Alex

I agree it is probably the push button door jam switch. IK