how low of a trim level can you get the cooled seats on? someone is looking at f250's.....The first couple of times I used mine it felt like I had peed my pants. There are a lot of complaints about the Ford ones. There is a guy that came out with a fix and charges $100+ for it. They make enough noise that I've wondered, "WTF is that noise?" more than once. So far, mine are effective.