We have a 2004 RX330 where the temperature control button is broken. It will not let you push the button down to make it cooler (broke) but the up button works. We have navigation screen. Dealer is saying we have to replace the entire display unit around $8000 (which is for temperature, navigation, radio, etc.) Car isn't even worth $8000. Is there no way to just fix the broken temp button?? If not, anywhere to buy used display unit? Can't find our part number on Ebay or any other site online. Part number for entire unit is 86110-48110.
