Help! Radio

[Tom Maine]

How does the radio off switch work when the key is removed and the door is opened on a 91 Vert. My radio suddenly stays on now when I remove the key and open the door and before it shut off after either 15 mn or when the door opened. Must be some sort of switch or relay but I dont know where.:confused

 

[Florida Guy]

Yes, there is a relay. I just emailed you. If you reply I will send a copy of the wiring diagram and troubleshooting chart. Mine is a 96. That circuit MAY be the same for you car.