Hello

I'm having an issue with my 2000 Maxda MPV. I jump started my other vehicle. The jumpstart went fine and I continued to drive the MPV without issue. Then after about 100 miles of mostly highway driving, it got stuck in 3rd gear, the speedometer stopped working, the 12v socket went out, and it was running very inefficient. When I got home, I turned it off and now it won't turn back on. When I do try to start it, the alarm goes off for a few seconds and it stops. Everything inside works fine. Key fob only locks and doesnt unlock. I've tried taking the terminals off the battery for a while, I've checked the fuses and only the cigar fuse is blown. I dont know what to do. Any help would be great. Thanks!