Hello all, I had a friend go with me to get a 02 passat wagon 2.8. Well he installed the battery we had to bring with us backwards. Car runs drives, sunroof works, lights all work but windows won't roll down. And the power seats just click when trying to move the seat. First question, I checked all the fuses and they are all fine, is there a relay for the windows? And the radio comes on but no sound. Don't know if this is related or not. Any help would be great.