My wife's 2004 Mustang GT convertible gets wet in the rear floorboard during hard rains. I understand there there are drains that exit somewhere under the car but can't locate them to clear them. Anybody know where tehse drains are and the best way to clean them out?
It's not clogged drains. Most likely your back window is leaking. It is fairly common. The back window piece separates from the top. You need to replace the back window and possibly the top as well to fix it.