I'm driving down the freeway in my 06 2.5i at 65 with the cruise set. All of a sudden, the car shifts down into 3rd, and I notice the ABS light comes on, but I hadn't touched the brakes. A couple seconds later, the needles dip a little bit when you turn the car off, and the stereo shuts off. A few seconds later it's turns back on, the light goes off and it's back to normal. I was only a few miles away from home and it was doing it all the way there. Once I hit my driveway, I shut it off to maybe reset something, and when I try to restart it, it acts like the battery's dead. It cranks for a second and the dash lights dims then stops.
I jump started it, and it started up fine; however I saw that the odometer had reset itself. I haven't done anything to the engine, but I have had the gauge cluster out/apart recently so I'm sure I did something to it. Any ideas what?