I have a 2002 Lexus RX300 and the AC was stuck on high. I disconnected my battery and reconnected it (recently a new battery) and now my AC AND radio are not working/responding at all. The navigation shows, but the radio and AC buttons are not responding to anything. I check all fuses and tried to disconnect/reconnect the battery once more. Any other suggestions/help, please????? I live in AZ and this is not ok.