I know there are a lot of posts out there about the door ajar and all that. I have a base model bone stock 2005 6.0 with 280k miles. Here's my issue, have done the pb blaster in all switches. Replaced the switches with no luck. It will ding like the key is in the ignition, dome lights come on all while just sitting parked. It seems to do this more when it is cold out. I have currently taken out the fuse for dome lights and am unplugging the cluster so it's not dinging and coworkers telling me she is possessed. Now it has become very slow to start. This is currently my daily driver so i really need any advice to get it corrected. It doesn't have the BCM according to 2 dealerships so I'm at a loss as to what it can be. Instrument cluster?