Lets see if we can get you help on transmission electrical pin/diagram for your 99 grand am and keep this all in one location.
I know you want to make sure that the wires get hooked up correctly as well.
The Danthurs post Guy was referring to is: 2001 Grand Prix Gt Transmission
So if anyone can help with info or by showing the main pin/connector for a 99 grand am it would be very useful! Thanks in advance!