Over the past year now, at different times my car windows and door locks have been going out. First just the driver side window, then the passenger and the rear right side. Also my a/c stopped working (blows air but is not cool). I also have the autostart feature on my car and this also went out; I try it from time to time and it does work once every couple of months but then that's it. Is all of this related to the same thing? what could be the problem?? Any estimation on price as well??? I'm a single young girl on her own and I know not a thing about cars. I want to get everything fixed but don't want to be ripped off or taken advantage of due to my lack of knowledge. Thanks for any help!