I have a 2007 chevy malibu and can't get it to start. My remote wouldn't unlock the door and the car wouldn't start. I tried jumping it and the alarm went off. With the cables connected I was able to use my remote to turn off the alarm, but I couldn't start the car. When connected to the cables the lights go on and the radio works. When not connected I get nothing. I'm wondering if the battery is dead or if there is some kind of security feature I triggered. Please Help!