Hi again, everyone! Back in town so have a little update. Recently, if I leave my radio on after turning off the engine, the battery drains quickly. I had my battery checked out and it's fine, my alternator charges it fine as well. Anyway, this happened the other night as I was filling up the gas tank. It was on E, and in the time it took to fill, the battery died. They gave me a jump at the station so it was ok. What I noticed, though, was that when I left the station, the Check Oil lamp was off (when I happened to glance at my dash), but as soon as I gave it gas it glowed faintly, but in direct proportion to the amount of gas I was giving it. I would think this would confirm it's a ground issue, right? (Would that also somehow make it so the radio drains the battery drains so quickly?)