Bad Jumpstart, reversed polarity!
 

Hello all. I'm brand new here so I apologize in advance for any ignorance on my part. I've run into some bad luck lately and well here's the story with what I did to my 94 Camry. I live in Seattle and it's been cold lately. My car had been sitting out for about 3 weeks and when I went to turn it on it only clicked. So I got my friends car and hooked up some jumper cables to them. Only because I didn't double check my connections I ended up putting them in serial circuit and frying my electrical system. My question is how much goes wrong in a 94 Camry when something like this happens? I could smell a burnt smell in the cabin of the car. How much stuff am I going to have to replace for this mistake? Thanks a bunch!