I also have a 2013 Dodge Journey RT. Everything you described was EXACTLY what mine was doing. I had a TERRIBLE parasitic draw and I had taken it to multiple mechanics and they couldn't find the source. All they would do was replace my battery, and it would be fine for a couple weeks, then die again. As my absolute last resort, I took it to a dealership and they found the source: the bluetooth module. It had been disconnected by another mechanic before, but it was still pulling power from the battery and other electronics in my car. They pulled out the entire bluetooth module (the mechanic before only disabled/disconnected it), and everything went back to normal. It was doing the same funky things you described, and it automatically went completely back to normal. Ironically enough, the bluetooth never worked at all for me since I first got the car, so it didn't really bother me taking it out anyway! To replace the bluetooth module, the dealership I went to priced it at about $1300 give or take, so I said just leave it out, since I never used it anyway. Hope this helps you with your troubles!