After coming home after 2 weeks I drove my jeep for about 2 days and I think I may have left the dome light on. The next morning I went to start it up and it was dead. I jumped it and the engine was turning over and when I gave it some gas but it wouldn't start. I went to auto zone and bought a new fuel pump relay and that seemed to fix the problem. A couple days later my jeep wouldn't even start. I charged the battery and put it back in and it started right back up again. It started perfectly throughout the day until I came home to pick something up and it wouldnt start. 2 Things happen when I try to start it now. It will either turn on but when I crank it will just turn off, won't even attempt to start even when there is enough battery. This 2nd thing is really strange. When I put the key in the car won't even turn on but when I take the key out the gauges jump and spin going crazy. I have no idea what this means. When I put the key back in they stop. Any help would be amazing.