not starting!!! Help

[derty30]

sooo i left my lights on one night and my girlfriend had to take the car so she got someone to come jump it for her, annnnnd they hooked the negative to positive in my car. i already checked the starter, alternator, and all the ground the battery is still good but it wont start. The gauges will work the first key turn (no sound from engine bay), but the second turn everything goes dim and there is no power. I heard that there is a built in security system which could have burnt out??

SOMEONE HELPPP!!!!

[Killacortes]

Check for some burnt fuses and fried relays. Worst case scenario your ecu got fried

[derty30]

Yeah that's what I'm thinking bc the fuses are all good. I heard there is a stock security system that could've gotten fried too you think that has to be swapped too? Where is it under the dash?