turn my headlights on, my driver side window automatically goes down?

Hi, I have a few issues going on. First when I turn my headlights on, my driver side window automatically goes down, but not every time, usually only when it’s raining, which sucks. Second, my ac was turning on for no reason, I usually ride with my windows down and sunroof open. But now nothing blows- no defrost, ac, heat. I think I may have a short somewhere bc the ac used to turn off and on repeatedly like hitting a light switch off and on and then stop, either in on or off position, and you couldn’t turn it off or on manually. It was stuck that way til next time you drove. I just don’t know much at all about electrical wiring, relays or how to troubleshoot. Any help would be greatly appreciated. Thanks