Back Passenger Floorboard Soaked
I have a 2005 Chevy Cobalt Base and the floorboard is wet. The car is lowered 1" in the back and everything on the car is barely stock. It has had all the speakers replaced. When I first started driving the car I found a flood of water in the trunk that had corroded the bottom. I shop vacced the water out and look everywhere for a leak. I soon found the back passen floorboard was completely soaked. I keep drying up the floorboard every few days. I had a friend soak the car with a water hose with me inside it and couldn't find any water running inside. Can someone post a picture or any info on where the ac drain plug is? I need some guidance on what could be causing the leak. Heater core gasket leak? Thanks for any and all help. I'll try anything to solve this issue, just need to know where to start.