I have an 04 maxima 3.5. I've found it does not have the typical cooler lines running to the radiator but rather coolant hoses that run from the engine to the trans. Is there a way to flush this transmission? And also what if one wanted to add an aftermarket auxiliary cooler how would that be done? I don't like the idea of just draining and filling as you only get about 40% of the oil changed. Ive checked all over and cannot find any videos on this transmission. Thanks for the help