Subaru STI Car Electrical Problem - What's the Cause?

Sounds like something i did. The flashing lights happened to my impreza too but i soon realized that there is a plug by your ecu. Which is located in the passenger foot well. Pull up the carpet in the back (near the dash) slowly and you should find your ecu. There are two connectiors that look like they should go together but they shouldn't. I put these two together and it caused hell but once i unplugged them. The car has ran fine.and how it is suppose to. Check those two connectiors