So I got this 89 300se. Air doesnt work. Heater doesnt work. I hear a small electrical humm in console when I push buttons, so i am assuming it's getting power. I need a gameplan here about what to check. Where is the blower? How to check it? Any other pieces that need to be checked? Etc.driving around in the rain with fogged up windows. No good. Also, the radio isn't powering on now and the illuminating lights for the window controls just stopped working.