I have a 6 bolt 1g and the car is experiencing electrical problems. The car started experiencing the problems after it was rear ended and the car sat for a little while. I am having trouble diagnosing the problem.
When the car started having the problems it was bone stock. I bought the car for a rebuild. the 7 bolt motor and tranny were replaced with another, the battery was relocated to the back, along with other standard electrical / computer upgrades were done like the fuel pump re wire etc..
I figured this problem would go away but I figured wrong. Here are the symptoms


alternator is not charging battery (alternator is brand new)
headlights and cluster lights flicker / fade when applying brakes
windows / seatbelts / wiper etc don't work when accessories are turned on, they only work when the car is running
car idles high / not sure if this is related
brake and abs lights are constantly on

please help

thank you in advance