I noticed sometimes when I get into my truck.

I noticed sometimes when I get into my truck when it is unlocked the headlights and the taillights start flashing and don't stop until I crank the truck, My interior lights won't come on at all when I open the door to get in the truck, And I just noticed yesterday that when I use the remote to unlock the doors that all the interior lights come on, cab light, door panels, and floor panels, but when I got in and sat down in the seat the lights went out two seconds later. They used to stay on for at least eight to ten seconds or until I started the truck, Plus I can leave the truck unlocked in my yard, no security on go to open the door and the horn starts blowing and won't stop until you start the truck. Just one more problem guys, please, my heater only blows out of the vent, no matter what selection I put it on it still comes out the vent. I got another one from a salvage yard, same exact thing, and it still does the same exact thing. Kinda hard to clear your windshield on a cold morning just blowing thru the vent while ur trying to get to work. In desperate need of help. Thanks Guys, MITCH