OK here it goes, my truck is a 2003 F-250 Superduty 6.0 deisel with an Edge chip installed. The bad part is once I park my truck and get out the Radio, Interior Light, Odometer, Bed Light come back on from time to time. To keep my battery from running down I put in a battery cut off switch. I have checked all fuses and relays (all checked good) and I have replaced the lock cylinder in the column. All of this has not stopped the problem. Somebody please help and give me an idea of where to look now.