Ok, Whenever you shut off your car, it is supposed to have a 10 minute delay before the radio and stuff shut off, right? So, my problem is now sometimes i will shut off the car and the radio (and whatever else is supposed to) will turn off right then. I won't have the door open or anything. It is not every time though, that's the tricky thing about it. So what else might make the accessory stuff shut off beside the timer and opening a door? Or how might i be able to fix this?

 

As a first though, you might have a sticking or corroded door switch.