Parked my car and when i went to drive home it wouldn't start , nothing totally dead. wouldn't start with a boost.

This happened to my sisters cavalier about a year ago. What you want to do is on the + side of the battery follow the red wire lead it should split in to 2 different wires a big wire and a small wire. The big wire should go down to starter and the small wire runs to a fuze box on the drivers side fender well behind the battery. Where the small wire conects to the fuzebox check that conection. On my sisters car it was broken there and would not allow power to get to the PCM, ECM and nothing worked. I hope this helps you out. If you have any questions let me no. goodluck, kyle