We tried jumping it and it won't work. We took out the batter and got it inspected, it's fine. We also got it charged and we cleaned the pieces connecting the battery to the car. Last night it went tiktiktik when we tried starting it but now it just goes thunk. All the electrical things like the locks, sounds and lights work until I try to start it and then it goes completely dead for about a minute. Can someone help me figure out what's wrong?