ever my warranty wouldn't cover it.here my dilemma: everytime i turn on my A/C i could hear a noise.....they think something get stuck inside. for them to check that out i have to agreed to pay $400. how should i know their not trying to make money out of me? advise pls? isn't my warranty need to cover up the diagnous for my car?i have a toyota yaris 2007- only 10,000 miles and i have the car for almost 2yrs.