So I've disconnected my battery a hand full of time over the last 3 months. Sometimes just the positive and at least twice I've disconnected the Positive and Ground, and cranked the ignition over to make sure it had no juice left. Every time I've done this when I hooked it back up, my radio pre-sets have never changed or reset, and I have the factory stereo. Well all the sudden yesterday I got in the truck to go to dinner and my stereo was reset. It was fine the night before on my way home. So idk, its not like its a huge deal, just a little weird. And was wondering if anyone had anything similar.