bad electrical problem

so ya I have a 2001 Eclipse, and one night my alarm just started to go off for no reason, and i had trouble shutting it off. Then when i got it off i went inside, and then a few min. later my lights were on. Ever since then my power locks only work win the car is on, the interior lights won't work, the moon roof stopped working, everytime i get in the car and want to listen to the radio I have to re-enter my sercurity code, and the display face for the clock does not work. The car also has trouble keeping its idle up. I have taken out the alarm still nothing, before this happened I had a system in my car, this system had a switch attached to the remote wire, and when I hit the switch then system would continue to play untill I turned it off, could this be something to look in to. This problem is driving me nuts. PLEASE HELP ME!

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That is a lot of problems all in one nutshell, Nathan. Did you check the negative cable on your battery? What kind of battery do you have? Perhaps cleaning the terminals and connectors might be something. I know the stock Mitsu battery terminals corrode very easily.