Today I shut off my 06 F150 and got out of the truck and shut the door.
Usually the radio stays on for about 5 seconds and shuts off but when I got back to my truck the radio was still on? I tried it again and it stayed on again after I shut the truck off and locked the door? Whats goin on?

 

No idea's with that one man-maybe the door sensor is sticking closed?
Mine would shut off with suthority when I pulled the handle from the inside.

 

The same thing happened to mine, and they replaced the switch that senses when you open the door. I'm not sure where it is on these trucks, but on my Explorer it was located by the latch inside the drivers door.