Reversed jumper cables

My jumper cables were recently put on backwards, ugh yes I know, anyways the lights are working, the aftermarket stereo is working, power windows are fine but my driver side power seat quit. Is it related? I do not know, but we took off panels under the hood and next to driver door and all the small fuses are fine, I do not know how to check the big ones. Got a newish battery, yes it is charged, I ended up taking the starter to get rebuilt at a professional shop, the solenoid was replaced or so it looked. My mom claims they might still have a problem with it and I need to take it off and take it back to shop and have them look at it again but I do not know if the starter is the problem though because I get a no BUS reading on my dash by my mileage, I am so unsure, I am at a loss. I am at my wit's end.