I've been trying to find my transmission fluid leak. When I get under the car the passenger side of the transmission has several lines going to it. I think 2 are for the transmission cooler (aluminum?) and the third is the TPS. I read that a common problem is the dipstick tube nut can get loose. I can't find where the dipstick tube connects to the transmission though. Is it behind the other lines or does it connect to the transmission in another location?