Hi I have a 2008 lexus is350, and the climate buttons and LCD screen is not working at all. I push the buttons and no respond, the LCD screen has power to it because i can see a light, lighting up in the background. I think its the climate/hvac module? if someone knows where its located. i would appreciate it. or any other idea that you might think that are wrong?oh and I changed the whole climate unit console and still got the same problem.