just bought an 05 xlt 4X4. great truck just has one problem. when you shut the truck off and open either one of the doors the radio stays on and the interior lights do not come on. is it the door switch? but on both doors? any help would be appreciated

 

if the doors were closed for a long time it could be that the door switch is stuck. hit it with some WD40 or your choice of lubricant and see of that helps.