If you have an assistant, this method works to figure out which is which on any car. Unplug one of the lines, have able and willing assistant start car for just a few seconds. If the fluid is flowing out of the hose, it's the inlet hose. If it's flowing out of the radiator fitting, then you have the outlet hose. (This is the where to tap in.)
Just let it run long enough to see whcih direction the fluid is coming from.
