1997 Dodge Intrepid

Other Category problem
1997 Dodge Intrepid 166000 miles

I've had a problem with my car for the past 2 years. This may get confusing. In the summer, when I start my car, because of the heat, the windows don't work, the fan for the a/c (which blows out hot air anyways) doesn't work and my airbag light comes on. I am able to put my windows down however, when the key is turned to the accesory setting. In the winter, my car starts fine, everything runs, until the temperature guage reaches the second line on the display, then any heat I have going turns off, and my windows stay where they are. (I'm a smoker, so this is a little chilly!) This will also happen if I've just turned my car off and then start it again, no heat, windows and air bag light is on. That's problem 1. Problem 2, my cigarette lighter doesn't work, I can't charge my phone or anything, It seems loose, how much would a new one cost to get installed?