Electrical Problems.... Again.

Ok, ever since I got the car a few months ago it's been having some electrical problems. It had dimming lights, and sometimes all electrical accesories were shut off temporarily. Yesterday, I left my lights on while I was at school and I got a jump to start the car. The next day, when I opened the door to open the hood to get my battery, my alarm went off and I couldnt turn it off until i shut all the doors. After I replaced the battery, the alarm wouldn't let me start the car. I found the speaker and it's a DEI 514N. It may have something to do with a switch inside the car. The switch doesnt seem to have any effect on the alarm. Does anyone have any ideas on how to disable it?

so basically you think the alarm is causing your car to not start? maybe its not synched up with the car..

I found out that when the alarm stopped getting power, It armed itself again when it got power. I found a small reset button tucked under the dash that had to be pressed in conjuction with the key in the ingnition.